What can one ordinary person do to change the world?
And by "change the world" I mean "significantly alter it for the better"
One ordinary person can change their worldview, but nothing an individual does can change the world for the better.....I suspect that one individual was responsible for spreading the coronavirus outside of a lab in Wuhan, and that definitely changed the world....but not for the better.
It seems way easier to introduce non-beneficial change, than to introduce something that brings benefits to the whole world. For every good thing that humans do, 10,000 morons will undo it by just being themselves....
There is no cure for stupid....