Up until now, the "fact" that grains were the first agricultural food was a scientific "fact".
Suddenly, overnight, it fades into the realm of "mistaken belief".
Aside from the jokes of global warming and indians in reservations being America's true and original owners, there are myriad other such "facts" that turn out not to be facts at all...
And if you don't like that, you won't like pure science.
But you can still be an engineer. ;^)