Without being mean, I encourage you to go look at some of simonw's writing on this topic, which he has addressed repeatedly (and IMO satisfactorily.)
I know because I too had this initial take; however, upon analysis, it is not sound.
I know because I too had this initial take; however, upon analysis, it is not sound.
Clearly at this point they are part of the training data.
They even all look sort of ish the same. Daytime, colors,...