4:03...in geometry assumptions are laid out for you. For example, "Given" this , prove that. In most fields assumptions are in the background they are not drawn out explicitly. 4:36 a pseudo understanding of critical thinking people will say "don't make assumptions" This is unintelligible, there is no such thing, it cannot be done. The following is intelligible, "be careful about the assumptions that you do make", think about the assumptions that you do make and try to make them with some criticality, with some sensitivity,....