[visarga]

> You do not need human text to speech engine that costs 30k/year.

So you don't need to ask any questions, ever? Then go to the library instead.

[Mediterraneo10]

Not all lecturers welcome questions, it depends on the country and culture. Certainly my own undergraduate experience consisted of a "human text-to-speech engine" experience where the lecturer lectured mainly from a text, while students were expected to silently listen, and then answer any questions they had themselves by searching in the literature.

When I moved on to graduate studies and had a weekly seminar, then questions and discussion were welcome, but I sympathize with the feeling that in-person undergraduate education is a waste of time and (in countries that charge tuition fees) money.

[swiley]

I really didn't ask many question during my career as a student. The whole thing really was an exercise in obtaining credentials.

[throw737858]

Did you visit public library recently? It is closed or full of homeless people. Scihub and laser printer is much better option!

For $50/hour you can find experts in most fields. You could even hire underpaid postdocs who teach at unis.