I didn't really find out anything from this post, but to be fair I rarely find out anything new.
I just wanna add, that it's WAY MORE COMPLEX, that "plants need more nitrogen in veg and more phosphorus in flowering".
This is one of these simplifications, that push noobs to pour shitloads of fertilisers of either type hoping they're gonna get on the good side of things before they even get how plants actually work.