Am scientist (well, was, before career change), can confirm. Fuck dogmatic scientists, they're worse than regular dogmatists because they've been given many opportunities to know better.
This is such a common problem that it's lead to the phrase "Science progresses at the march of funerals.", what with all the people so attached to their pet theories they can't humor anything that contradicts them.....
Hah, I haven't thought about Dragonball in ages. Thanks for the laugh.
Progress through turnover is true, and it's maddening because the core tenets of science are explicitly against this. At our hearts, we're still just apes with extra inflated egos.