Envy has existed far longer than social media, none of these things would go away if social media doesn’t exist. Social media just amplifies it.

Comparison has always been the thief of joy.

I think you might need to reread watchmen then

Because there is no theory of quantum gravity we have no idea how gravity could interact with anti matter. By showing that antimatter behaves just like matter when interacting with gravity we can learn a lot about it and cut the number of possible theories of quantum gravity in half.