Why are humans so unproductive by nature?

Won’t you agree with me that we are the greatest procrastinators on Earth and we never seem to be really productive? Especially when we’re working with other people or in teams. Or perhaps we were productive to start off with in the beginning of time but then as technology creeped in, we just started becoming lazier? Haha okay that’s a few questions. Just a random train of thought as my first post since I realise that I’m not exactly doing what I’m supposed to be doing now! hops back to my lecture notes