> It forces people to put in massive efforts early-career. From what I understand and have heard, a lot of advancements in math and physics in particular have

> It forces people to put in massive efforts early-career. From what I understand and have heard, a lot of advancements in math and physics in particular have come from people that are quite young, often in their 20s. That's apparently when brains are at their peak; it seems to me that's the period in which massive efforts are most likely to pay off big. Einstein was 26 when he published his annus mirabilis papers. I believe Newton was in his mid-20s when he began developing calculus.