I try not to do this, but if you’ve ever spent time in a university lecture, go and read this blogpost. Here’s the highlight for me:
A manuscript hand-copied book back in 1000 cost roughly the same share of average annual income as $50,000 is today.
The point is often made that the lecture format hasn’t changed in a millenia. That being said, I’ve yet to find a better way to impart most information than a good lecturer armed with chalk and board. Powerpoint slides or any sort of technology in the classroom have yet to produce any real gains for me. Admittedly, maybe a function of what I study, but still, I wouldn’t dream of replacing the lecture with anything else.