Some days I kick back and delve into Youtube. Given what I pay monthly for optical fiber, to CenturyLink, I think of such R&R as getting my money's worth.
Besides, I'm not just goofing off. Youtube is not a porn site after all. Yesterday I was immersed in MIT's 8.04 Quantum Mechanics. Today, I'm back to freakish humans and the lonely lives some of them have.
That I would go back to watching about Pi Guy, who recites some 20K digits flawlessly, is apropos given what I've been up to in Jupyter Notebooks. You'll find a link to the above video in the For Further Reading section. I'll take you there by way of edu-sig.
Brain science sometimes struggles to explain these phenomena. Reality stays humbling.