I've been a designer since the 80s. I have been working in Altium since its release. (A mixed and power electronics designer). I haven’t seen anything more exciting, I was stuck for two hours. Lots of adrenaline. Detectives are resting! Thank you for the material. Much is familiar and has long been intuitively understood. I developed some of my own triks and solved problems differently. But here is a wonderful systematization of the life experience of a wonderful designer on the way from a teapot to a pro!! I understand it and remember every one of my mistakes and every crazy PCB. At some point I realized that the EMC laboratory should be behind my back, and not from someone for money. I assembled it, and the work went much faster. Thank you so much again!
Title: How to achieve proper grounding Topics covered: Signal integrity cross talk EMI digital/ananlog topics layer stackups Best video I've ever seen. Thanks Altium for beautiful effort of bringing industry experts to an open platform. Thanks alot
Only 30 minutes in and the way hes describing these topics bring so much more understanding to how circuits work than anything in my electrical engineering degree. Thank you so much Rick!!!
I attended one of Rick’s 2 day seminars a few years ago and this was a great refresher. THANK YOU Dan for making it so simple to understand. I’m still debating with other engineers who insist on talking about where the current flows without admitting it’s where the fields travel. It’s the field propagating that creates the current flow in the copper. I’m going to make my engineers watch this to try to get them to understand.
Mind-blowing content. I am just starting out in Hardware design professionally. This is what I have been looking for, 55 years of experience eloquently delivered. Thank you, Rick
I'm on my second viewing and this video is still stunning. I imagine a third and fourth viewing to be in my future, there's just so much to take in. Thank-you Rick Hartley and Altium.
I learned more about good PCB design in these 2,5 hours then in all the years at school! Yes, it is for free, but all of this knowledge is priceless and very valuable!
Wow, this was a complete paradigm change in my thinking, it instantly gave me an entirely different understanding of signal (noise) propagation on circuit boards! I can’t recall the last time I had such a sudden burst of comprehension, it was an amazing experience. *Huge* kudos and thanks for the presentation!!
How the hell you gonna drop these mind bombs on me for 2 hours straight. This video just now was a pivotal point in my understanding of electronics. This is the kind of thing the internet was made for.
This is like listening to Grand Master Oogway. I was amazed, when he revealed, that energy travels in dialectric, so much great examples, for free!? Man, I love this.
I was fortunate to have taken a course early in my career back in the late 80s taught by Prof. Tom Van Doren on Grounding and Shielding. He covers most of these same concepts, but in more detail given that it was a two-day course rather than two hours. Very useful for control engineering and instrumentation as well as PCB design.
This video elicited a profound transformation in my cognitive framework, instigating an immediate and comprehensive shift in my understanding of signal (noise) propagation within the realm of circuit boards. Thank you!
7:00 the question of should you attach the cable shield to chassis or to circuit ground, for which Rick's answer is always to the chassis (and for good reasons). That's all very well, so long as this cable is not designed to carry the signal return (slash ground reference voltage) on the shield, like several standards for audio cables do, for example. In that situation, you don't want the shield conductor to connect the chassis of two pieces of equipment that are plugged into mains, where their chassis are individually connected to the ground pin of two different wall outlets, thus introducing a ground loop, and a hum voltage that adds to the audio signal being communicated. There's a reason for insulated RCA sockets, insulated BNC sockets and so on.
The best presentation I've seen in many many years. Eyeopening big time! Thank you for your insights. Also great prestation skills, never lost contact during the presentation. Excellent and well done!
Turns out that when I design a PCB that I'm doing the right thing naturally, to me it's common sense but I still learned a couple things from this video that I can improve on in the future so many thanks for taking the time to make this video and sharing it here on UA-cam. If you're researching electrical engineering and go into the specifics like this topic in this video it's very hard to find anything coming close to the quality and the wealth of accurate and reliable information like we get with this video, we need more of this online in the public space because there's too many people talking about these things online who don't have a clue of what's really going on and if you're doing research on a specific part in EE that you're not familiar with and you listen to the wrong people you'll get misinformed and it's even harder for someone to recognize being wrong and have to learn it all over again to get rid of the misinformation planted in your head by all those idiots thinking that they know it all which is costing too much time that you never get back, it happened to me several times so I'm talking from my own experience. Again many thanks for putting this online guys and I wish you all the best, Ricardo Penders.
This really is a superb, and enlightening presentation. ONE THOUSAND THANKS. Rare and precious material that changed my view on electronics and my routing jobs.
Thanks Altium and Rick. This is one of the best PCB tutorials I've seen. Only wish I'd seen it years ago. For me it brought together all those little tips I've been told since the start of my career but actually explained why - with some great tips that I hadn't been told as well.
I'm a dumb mechanical guy who dabbles with electronics as a hobby and this was so enlightening! I love it when experts explain the fundamentals clearly!
Genious video which can absolutely change the vision of the board design physics for many HW engineers. It's a pity that there is a big lag of video relatively to sound, and Altium hasn't fixed it. A little bit hard to follow.
Thank you very much. Although I already applied some of the practical rules exposed here, this explanation of why we should apply them was really eye opening. The most surprising realisation is that bad effects start to happen at frequencies as low as just few kHz. Again many thanks !!
I think the drain of a sink analogy around 9:55 works quite well. You just have to think of a drain with issues: clogged up, poorly vented and with an incorrect slope.
Great presentation. At 32:00 there is an interesting effect not discussed. At very low frequencies the Z0 goes up (nonlinearly) due to finite R and G as frequency approaches zero; a low frequency dispersion. You can see this effect on some RF VNA that go down to 300 kHz or lower.
Gosh, I've gone through tons of tutorials about spit grounds, crosstalks, and EMI-related issues, but NONE of them is clear, most are just based on rubbish and usually incorrect experience. As a former physics student and current Ph.D. student working in mechatronics, this is the tutorial I am looking for, theory and reality perfectly combined! I wish I'd seen this video a few years earlier, could saved me a ton of time debugging stuff.
This is absolutely brilliant information. I've only recently began studying electronic engineering during my master's, and this is brilliant supplementary info! Thank you so much Rick!
Energy transmitted in dielectric! That's the priceless part - many people talk about impedance and return currents, but that's the perfect and extremely simple explanation of _why_! Thanks!
Meanwhile I say this too my principle digital engineer supervisor and he said it is nonsense. And also asked my RF/Microwave design engineer coworker and they said similar thing. I don't who to believe anymore....
@@TheVideoVolcano it's not a matter of faith - physics doesn't care about people's opinions :) Just ask yourself a question: how EM wave propagates here (hint: it's explained in the video but requires some knowledge to understand). If you would blindly trust the video without understanding what is happening, how will you apply it for actual PCB design anyway?
@@TheVideoVolcano They are wrong and I can prove it. Ask them How does the Electricity from the Power station get to their Home? The Cables are the Wave Guide, as the EM fields are OUTSIDE the wires travel 100's of Km/Miles - this is true because you move a wire next to the Power cable and get the EM energy to move into your wire. The Transmission Line System Proves this to accurate - have you seen the Veritasium videos on How Electricity Actually works? It's a Study of Electrodynamics. A Capacitor is a break in the circuit, nothing should cross it, but it does, why EM fields travelling though the wave guide. How does RF work? EM fields travelling though space/air meet up with a wave guide, called an antenna and we receive the signals. No Electron from the Power Plant makes it to your Home, All the Power is in the EM fields. Voltage and Amps are Measurements of the EM field. Did you watch the Play list?
I am just an electronics noob with some stupid breadboards but that "voltage and current is not the energy" thing was just amazing as well as the rest of the video!
Very interesting and valuable. I wonder if there is such a thing as “field-oriented or field-centered electronic design” that starts at fields and folds the design around that.
I think the mind required to design circuits that way would be inconceivably smart. It's taken me 30 years to understand how electricity flows through a wire !! Lol
This seems similar to the "double slit" paradox. Electricity "takes the path of least resistance", but in order to take that path, it must already know the path
Awesome talk, well worth it. Thank you very much! I wish there was a way for Altium to check this concepts in the DRC. Like have at least a warning when you route a signal between power planes, or when you split grounds, etc. Maybe this feature is somehow implemented and I'm not aware of it?
Great Videos, Rick Hartley is doing talks at PCB West/East and I can't seem to find them. You can also add this one, " Navigating Grounding and EMI issues in your PCBs and PCB West Sneak Peek" and Printed Circuit University website, also associated with Rick. Fundamentals -> Veritasium: The Big Misconception About Electricity and his follow-up Video: "How Electricity Actually Works" and the Asylum Society - Electrodynamics play list (which explains that EM fields is where the Energy is and that is another abstraction of what is happening on the Atomic level). No Electron from the Power plant ever makes it to your Home to power your Phone Charger, it's all in the Fields!
Thanks Rick. now i understand some of the problems there are in the model train world i have seen with marklin digital. I work with Eagle cadsoftware 9.6.2 - now and design pcb for my marklin digital layout. Best regards, Henrik Vilhelmsen - Dannemark.
All the stuff that my dad tried to explain to me about electron flow, whole flow, and the emission of electromagnetic energy as a kid all came back to me while watching this. Excellent presentation by a (compliment-trust me) huge freaking nerd. Saved into my "EM Theory " folder on UA-cam. 😅
Man... the stuff I learnt in one afternoon. Tx mr ♥- ley. I got here from Phills lab. But as a hobbyist I am using kicad because Altium is quite outside my budget. Hope you don't mind learning from your channel nevertheless 🙃
I take it he meant that if traces don't have their return path directly in a ground plane below, you should route them like this: Signal - GND - Signal | Signal - GND - Signal ..... So every signal line has a ground return path directly ajacent.
👍👍👍 GREAT VIDEO!!!! I VERY rarely comment on videos. But I had to on this one. Great content rarely found anywhere else. Clear and concise presentation. More videos from Rick!!!!!!!
@50:35 it's the core vs prepreg situation... two sheets of 0.5oz copper on both sides of a core, and you stack them up with prepreg between each. Look it up if you don't know what he is talking about, as it's critical.
I've been a designer since the 80s. I have been working in Altium since its release. (A mixed and power electronics designer).
I haven’t seen anything more exciting, I was stuck for two hours. Lots of adrenaline. Detectives are resting! Thank you for the material.
Much is familiar and has long been intuitively understood. I developed some of my own triks and solved problems differently. But here is a wonderful systematization of the life experience of a wonderful designer on the way from a teapot to a pro!!
I understand it and remember every one of my mistakes and every crazy PCB. At some point I realized that the EMC laboratory should be behind my back, and not from someone for money. I assembled it, and the work went much faster. Thank you so much again!
This mans knowledge is remarkable.
Title: How to achieve proper grounding
Topics covered:
Signal integrity
cross talk
EMI
digital/ananlog topics
layer stackups
Best video I've ever seen. Thanks Altium for beautiful effort of bringing industry experts to an open platform. Thanks alot
Only 30 minutes in and the way hes describing these topics bring so much more understanding to how circuits work than anything in my electrical engineering degree. Thank you so much Rick!!!
I feel like my brain just expanded to double the size Great talk
This is probably one of the best lecture in Electronics, I've learned so much, thank you very much indeed.
I attended one of Rick’s 2 day seminars a few years ago and this was a great refresher. THANK YOU Dan for making it so simple to understand. I’m still debating with other engineers who insist on talking about where the current flows without admitting it’s where the fields travel. It’s the field propagating that creates the current flow in the copper. I’m going to make my engineers watch this to try to get them to understand.
the 4th time i watched this and every time I pick up new info !! THANK YOU .
This are one of the best 2:20h I spent in my professional life. Thank you!
L ok
@@satyanarayanamoharanamohar3168u maa
Mind-blowing content. I am just starting out in Hardware design professionally. This is what I have been looking for, 55 years of experience eloquently delivered. Thank you, Rick
Check out Robert Feranec's channel as well.
+1
@@xhivo97 mxccmmcvvcmcmcmcvmvmcvn.
@@xhivo97 iiiiiiiiiii
@@garygranato9164 I’m😊k😊
Mind blown. Amazing how you can learn how much you didn't know and change how you view things completely at the same time.
Get through the first 10 minutes and then THIS BECOMES A FANTASTIC VIDEO FOR PCB DESIGN!
I'm on my second viewing and this video is still stunning. I imagine a third and fourth viewing to be in my future, there's just so much to take in. Thank-you Rick Hartley and Altium.
I learned more about good PCB design in these 2,5 hours then in all the years at school!
Yes, it is for free, but all of this knowledge is priceless and very valuable!
I went to sleep and woke up to this ty for the best time of my life God loves you
Wow! This talk put so many things in to to right place in my head. Thank you very much.
Wow, this was a complete paradigm change in my thinking, it instantly gave me an entirely different understanding of signal (noise) propagation on circuit boards! I can’t recall the last time I had such a sudden burst of comprehension, it was an amazing experience. *Huge* kudos and thanks for the presentation!!
😊pppppppppppppp😊pkpp😊ppp😊pppppppuhh hmm h hh
❤❤w1,1
❤❤w1,11,,,,
How the hell you gonna drop these mind bombs on me for 2 hours straight.
This video just now was a pivotal point in my understanding of electronics.
This is the kind of thing the internet was made for.
This is like listening to Grand Master Oogway. I was amazed, when he revealed, that energy travels in dialectric, so much great examples, for free!? Man, I love this.
I felt I was not only learning, but being enlightened. Thank you Mr. Hartley! Please Altium, we need more content from this Guru.
Glad this video got released! My kids won't stop playing up and I've been needing to properly ground them
Great presentation, Rick! This talk was my first introduction to multi-layer PCBs and their best practices. Thank you for the insightful session!
It was one of the best tutorials I have seen on UA-cam. Thanks a lot.
Rick Hartley is the best. He looks so good.
I started knowing nothing about pcd design, now i know some things. thank you very much about this talk. I'll come back when i know better.
I was fortunate to have taken a course early in my career back in the late 80s taught by Prof. Tom Van Doren on Grounding and Shielding. He covers most of these same concepts, but in more detail given that it was a two-day course rather than two hours. Very useful for control engineering and instrumentation as well as PCB design.
This video elicited a profound transformation in my cognitive framework, instigating an immediate and comprehensive shift in my understanding of signal (noise) propagation within the realm of circuit boards. Thank you!
This is truly excellent content. A goldmine for any PCB designer. Thank you.
7:00 the question of should you attach the cable shield to chassis or to circuit ground, for which Rick's answer is always to the chassis (and for good reasons). That's all very well, so long as this cable is not designed to carry the signal return (slash ground reference voltage) on the shield, like several standards for audio cables do, for example. In that situation, you don't want the shield conductor to connect the chassis of two pieces of equipment that are plugged into mains, where their chassis are individually connected to the ground pin of two different wall outlets, thus introducing a ground loop, and a hum voltage that adds to the audio signal being communicated. There's a reason for insulated RCA sockets, insulated BNC sockets and so on.
The best presentation I've seen in many many years. Eyeopening big time! Thank you for your insights. Also great prestation skills, never lost contact during the presentation. Excellent and well done!
I was lucky enough to be at some of Rick’s seminars while I was at Compaq and Hewlett-Packard. Very informative. I still have his guide book
Book of knowledge for beginners. A must-watch lecture.
Wow. This movie is ABSOLUTELY a must for pcb designers. Rick, thanks!!! Gr from Holland.
thank you for presenting complex information in an understandable format
@10:00 such an humble "Grounded" person. Love from INDIA
It one of the most amazing videos I've ever seen on youtube
Turns out that when I design a PCB that I'm doing the right thing naturally, to me it's common sense but I still learned a couple things from this video that I can improve on in the future so many thanks for taking the time to make this video and sharing it here on UA-cam.
If you're researching electrical engineering and go into the specifics like this topic in this video it's very hard to find anything coming close to the quality and the wealth of accurate and reliable information like we get with this video, we need more of this online in the public space because there's too many people talking about these things online who don't have a clue of what's really going on and if you're doing research on a specific part in EE that you're not familiar with and you listen to the wrong people you'll get misinformed and it's even harder for someone to recognize being wrong and have to learn it all over again to get rid of the misinformation planted in your head by all those idiots thinking that they know it all which is costing too much time that you never get back, it happened to me several times so I'm talking from my own experience.
Again many thanks for putting this online guys and I wish you all the best,
Ricardo Penders.
THANKS a lot. This has been so educational! A lot of mysteries have been solved that I've been carrying around.
This really is a superb, and enlightening presentation. ONE THOUSAND THANKS. Rare and precious material that changed my view on electronics and my routing jobs.
Thats awesome! Im routing biards for many years, so much read, but never heard better.
WOW, i just learnt how wrong my concept of grounds are!!! Mind Blown! Thanks Rick Hartley, super interesting and awesome content!!
Thanks Altium and Rick. This is one of the best PCB tutorials I've seen. Only wish I'd seen it years ago. For me it brought together all those little tips I've been told since the start of my career but actually explained why - with some great tips that I hadn't been told as well.
This man is really a gem, watching in 2024
This is gold. Thank you Rick
I'm a dumb mechanical guy who dabbles with electronics as a hobby and this was so enlightening! I love it when experts explain the fundamentals clearly!
Me too bro!
o...o
Genious video which can absolutely change the vision of the board design physics for many HW engineers. It's a pity that there is a big lag of video relatively to sound, and Altium hasn't fixed it. A little bit hard to follow.
Thank you very much. Although I already applied some of the practical rules exposed here, this explanation of why we should apply them was really eye opening. The most surprising realisation is that bad effects start to happen at frequencies as low as just few kHz. Again many thanks !!
I think the drain of a sink analogy around 9:55 works quite well. You just have to think of a drain with issues: clogged up, poorly vented and with an incorrect slope.
Its a million dollars video, im a 38 years radio engineer and knew that all only now, energy is a field! now i got it.
This is a fire broadcast, I enjoyed this thoroughly
Very excellent, thank you very much for sharing this.
I spend all my New Year celebration with this super interesting man. Thank you for sharing such content!
Great presentation Rick! There is a mechanical thickness requirement of 0.062" for a PCIe board-edge connector.
Very impressed with Altium this year. It's like they won 2019 World Series. Killin' it.
Thank you Rick for this golden information!
Amazing content Rick. Thank you it really helps with PCB design. Helped me get insight into design flaws with my pcbs.
Love this format, keep up the great work
This is blowing my mind. Keep up the amazing work!!! 🚀
Really good video, I will use some of this information in our small company making gadgets.
Great presentation. At 32:00 there is an interesting effect not discussed. At very low frequencies the Z0 goes up (nonlinearly) due to finite R and G as frequency approaches zero; a low frequency dispersion. You can see this effect on some RF VNA that go down to 300 kHz or lower.
I've suddenly become a big fan of Rick Hartley😊Like math, I basic rules should be understood before you can do good work 🙂
Gosh, I've gone through tons of tutorials about spit grounds, crosstalks, and EMI-related issues, but NONE of them is clear, most are just based on rubbish and usually incorrect experience. As a former physics student and current Ph.D. student working in mechatronics, this is the tutorial I am looking for, theory and reality perfectly combined! I wish I'd seen this video a few years earlier, could saved me a ton of time debugging stuff.
Mind blowing content, basically tore apart years of "knowledge" in 2 hours!
Phil's Lab sent me here, so grateful. But now I have to go back and rework my design.
Amazing, we need more like this stuff, I wish I was one I would have asked a few questions.
This is absolutely brilliant information. I've only recently began studying electronic engineering during my master's, and this is brilliant supplementary info! Thank you so much Rick!
Thank you so much Sir. Also a big thank you to Altium team for all time uploading this kind of knowledgeable session.👍
Energy transmitted in dielectric! That's the priceless part - many people talk about impedance and return currents, but that's the perfect and extremely simple explanation of _why_! Thanks!
Meanwhile I say this too my principle digital engineer supervisor and he said it is nonsense. And also asked my RF/Microwave design engineer coworker and they said similar thing. I don't who to believe anymore....
@@TheVideoVolcano it's not a matter of faith - physics doesn't care about people's opinions :) Just ask yourself a question: how EM wave propagates here (hint: it's explained in the video but requires some knowledge to understand). If you would blindly trust the video without understanding what is happening, how will you apply it for actual PCB design anyway?
@@UltimateRobotics unfortunately regardless of what I think, I will be forced to do it their way even if it wrong... it is annoying...
@@TheVideoVolcano They are wrong and I can prove it. Ask them How does the Electricity from the Power station get to their Home? The Cables are the Wave Guide, as the EM fields are OUTSIDE the wires travel 100's of Km/Miles - this is true because you move a wire next to the Power cable and get the EM energy to move into your wire. The Transmission Line System Proves this to accurate - have you seen the Veritasium videos on How Electricity Actually works? It's a Study of Electrodynamics. A Capacitor is a break in the circuit, nothing should cross it, but it does, why EM fields travelling though the wave guide. How does RF work? EM fields travelling though space/air meet up with a wave guide, called an antenna and we receive the signals. No Electron from the Power Plant makes it to your Home, All the Power is in the EM fields. Voltage and Amps are Measurements of the EM field. Did you watch the Play list?
Rick [if you ever come read this] - dude - that's awesome. So great. Get more of your knowledge out there, please, you do it well.
He speaks at just about every major PCB design conference... if you can afford going to a conference.
I am just an electronics noob with some stupid breadboards but that "voltage and current is not the energy" thing was just amazing as well as the rest of the video!
Consider Veritasiums Videos: The Big Conception of Electricity and his Follow up Video, How Electricity really works.
that all of this is free info is the best ever . thank you very much .
What a presentation!!
Very interesting and valuable.
I wonder if there is such a thing as “field-oriented or field-centered electronic design” that starts at fields and folds the design around that.
I think the mind required to design circuits that way would be inconceivably smart. It's taken me 30 years to understand how electricity flows through a wire !! Lol
I slightly disagree with your ignorance of the peanut-buttered vias! :-), ...have you tested it?
Phil's Lab sent me ... great presentation!
This seems similar to the "double slit" paradox. Electricity "takes the path of least resistance", but in order to take that path, it must already know the path
Thank you for this excellent information. Really appreciate it 👍
Very Informative. Thank you Rick!
Awesome talk, well worth it. Thank you very much! I wish there was a way for Altium to check this concepts in the DRC. Like have at least a warning when you route a signal between power planes, or when you split grounds, etc. Maybe this feature is somehow implemented and I'm not aware of it?
Thanks for this great video! really learned a lot from this video.
Awesome 😁 thank you mister Rick.
Unbelievable - this is GOLD
Great Videos, Rick Hartley is doing talks at PCB West/East and I can't seem to find them. You can also add this one, " Navigating Grounding and EMI issues in your PCBs and PCB West Sneak Peek" and Printed Circuit University website, also associated with Rick. Fundamentals -> Veritasium: The Big Misconception About Electricity and his follow-up Video: "How Electricity Actually Works" and the Asylum Society - Electrodynamics play list (which explains that EM fields is where the Energy is and that is another abstraction of what is happening on the Atomic level). No Electron from the Power plant ever makes it to your Home to power your Phone Charger, it's all in the Fields!
Thanks Rick.
now i understand some of the problems there are in the model train world i have seen with marklin digital.
I work with Eagle cadsoftware 9.6.2 - now and design pcb for my marklin digital layout.
Best regards, Henrik Vilhelmsen - Dannemark.
Mindblowing stuff, I learned alot of things that I should not do... now to figure out what the heck should I do instead XD
Who would have thought that a free video on UA-cam taught me more about board design than my $40,000 education. I’m pissed.
Great video!!!
Wow, 2.5hrs of grounding awesomeness!
All the stuff that my dad tried to explain to me about electron flow, whole flow, and the emission of electromagnetic energy as a kid all came back to me while watching this. Excellent presentation by a (compliment-trust me) huge freaking nerd. Saved into my "EM Theory " folder on UA-cam. 😅
Absolutely fantastic.
Rick, you are a f@#cking GENIUS, thank you so much!
Man... the stuff I learnt in one afternoon. Tx mr ♥- ley. I got here from Phills lab. But as a hobbyist I am using kicad because Altium is quite outside my budget. Hope you don't mind learning from your channel nevertheless 🙃
Thanks for this awesome content!
I didn't understand what you meant to route a layer in triplets.
Would You explain?
I take it he meant that if traces don't have their return path directly in a ground plane below, you should route them like this:
Signal - GND - Signal | Signal - GND - Signal .....
So every signal line has a ground return path directly ajacent.
Thank you very much. This was amazing!
bro i was sleeping in the middle in the night then i woke to this i watched this FOR 2 HOURS
Excellent training!
👍👍👍 GREAT VIDEO!!!! I VERY rarely comment on videos. But I had to on this one. Great content rarely found anywhere else. Clear and concise presentation. More videos from Rick!!!!!!!
@50:35 it's the core vs prepreg situation... two sheets of 0.5oz copper on both sides of a core, and you stack them up with prepreg between each. Look it up if you don't know what he is talking about, as it's critical.
Thank you for sharing this invaluable information.
Excellent lecture :)
Worth watching every single sec 👌