It is not necessarily true that expensive experiments are not worthwhile doing but there are plenty of rather cheap experiments which are certainly worth doing.
It is natural for us, as human beings, to look forward. Our eyes naturally look ahead. In this sense, we are made for moving toward a goal.
My dad is good at sticking with stuff and he has a strong work ethic, which is imbued in me. Growing up, he would constantly ask what I was doing and was I achieving anything.

