From I Fucking Love Science:
This. A million times this. With a capital E and a large integer times this.
If “Everyone’s entitled to their opinion” just means no-one has the right to stop people thinking and saying whatever they want, then the statement is true, but fairly trivial. No one can stop you saying that vaccines cause autism, no matter how many times that claim has been disproven.
But if ‘entitled to an opinion’ means ‘entitled to have your views treated as serious candidates for the truth’ then it’s pretty clearly false. And this too is a distinction that tends to get blurred. [emphasis added]
This is why I leave myself amenable to correction when I have either run afoul of verifiable facts or when my logic is occasionally wanting. I might push back, but with good intentions. If the counter-argument is weak enough that a little pushback defeats it, maybe the counter isn’t so hot after all. So maybe my opinions aren’t exactly serious candidates for truth (truth be told, I don’t think much is, but I’m an epistemological wreck like that, if a punny one), but at least I tend to think they could be, else I wouldn’t bother you with them.