I wish I had access to papers for free, I'd read more and do more things.

For example, the earliest magnetic gears papers were $25 each and I needed about ten that cited each other. That's why I didn't try to create a magnetic hub for cycling. Att the time I thought I could make a more compact geared hub, but needed the torque calculations to be sure. I was a college student, my university did not have access to those journals, and I had no money.