>>mesozo+FP
This is exactly how science is supposed to work. People learn some new things and they update their opinions based on that new data. That's a good thing.
The idea that people aren't allowed 'second thoughts' is probably the worst thing to happen to general discourse.
>>someth+6s1
These scientists didn't believe X, and later change their minds to believe Y based on new evidence—they believed X, vocally smeared everyone who dared to believe Y as liars and cranks, and later changed their minds to believe Y based on new evidence.
Updating opinions based on evidence is good. Insulting and slandering people because they have different opinions is bad.