/sci/ - Science & Math

I think attending lectures is an obsolete way to learn, and it has been for a long time. As technology progresses, it just becomes more and more absurd.

Instead of a professor giving the same lecture over and over again, he should give it once and record it, making sure everything is perfect and clear. Then an unlimited number of students can simply watch the best version of the lecture on their own time, with the benefit of pause/rewind, etc.

This makes even more sense for common, lower level subjects. We don't need 50,000 different professors presenting Physics 101. It's an absurd waste of manpower. Instead, you could have the best of the best recording lectures for millions of students. Classes, when they meet, would instead be Q&A sessions about the material the students have already seen.

Am I crazy, or is this obviously a better way of doing things?

Classically, everything that happens forwards in time COULD happen in reverse, because entropy is just probabilistic. The shards of a broken coffee cup lying on the floor COULD be bounced back together by perfectly converging vibrations in the floor, fuse back together, and get launched up in the air to land safely on the table, all without any fundamental forces behaving strangely. It's just so unlikely that it will never, ever, ever happen.

That all makes sense to me. What I'm wondering is, how does something like a black hole fit in with that? Is "nothing can leave a black hole" similarly a probabilistic law, or is it fundamentally different? Does general relativity change the meaning of entropy?

>>5909576
We take every post seriously here

>>3316039
>summarize this board in one sentence.
Religion, trolling, homework, and EK.

>/sci/
>bastion of intelligence on 4chan

>>2948310

It actually is sometimes, but not on weekends/holidays.

Every religion thread is a troll thread. Even if people actually believe in religion, they know that there's no chance of actually having a legitimate discussion on the subject.