things that magically happen in grad school

so i'm not sure when it exactly happened, but at some point in grad school, i learned how to think more analytically and critically. i think it was after i published my first paper. somehow, by God's grace, i'm able to read papers and make suggestions to make papers stronger in organization, structure, and the points made in papers. this has carried over to making presentations and critiquing others presentation. so i don't know what happened, and how God morphed my brain into this new understanding (it's almost magical). weird.