About distance learning ...

Gentlemen and Ladies!

As a person, who is always eager for knowledge (who knows me, he will not let me lie), I am constantly horrified at how difficult it is to obtain the necessary knowledge, and even more so the skills in our education system ...

Always, when I undertake to study something, I am tormented by vague somai: is it possible to optimize this process like something? ..
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In this regard, the following questions:

Have you ever used distance learning?
What were trying to learn and where?
How successful?
What do you think about the prospects of distance learning?