Regarding your last point --that it doesn't help a weaken by stating that scientists don't know how the mechanism could work. What about saying the same, but for a strengthen? Such as scientists claim that it could be true by....? Would something like that be a qualifying answer?
Do you offer a course or tutoring?
Regarding your last point --that it doesn't help a weaken by stating that scientists don't know how the mechanism could work. What about saying the same, but for a strengthen? Such as scientists claim that it could be true by....? Would something like that be a qualifying answer?