We've all heard Swamp creatures like Psaki and Fauci say "the science has evolved" when they get busted in lies or need to change direction for tactical purposes. Spoken as though the truth really DOES conveniently shift wherever they want it to go and they are innocently just trying to keep up with new data.
So next time you're in a debate with a liberal and hear anything like "It's science", you can clearly win any argument by simply saying "the science evolved". This is to arguments what Bulbasaur is to Rock-Paper-Scissors (Bulbosaur beats everything). The science can evolve every 5 minutes if you want it to.
You forgot one excuse:
You don't understand what you're talking about. I'm a scientists and you're not, so you're not capable of understanding.
I guess since (according to Democrats) "science" evolves randomly every day they really can't ever KNOW anything, so how can they REALLY be "scientists"? Like, a PhD from 5 years ago is clearly antiquated to the point of uselessness :P