Does anyone else try to randomly learn about things like science and art?

I don’t mean for school or university but just for your own knowledge.

A few months ago I was learning about the history of art.
Then the history of philosophy.
Then the history of science, knowledge and education.
Then last month improving body language, improving my voice, the way I speak and etiquette.
Then this month cooking, the history of food, cuisine and cooking techniques.

I remember a while ago I tried to learn calculus but it was too hard and I quit.
Does anyone else try to randomly learn about things like science and art?
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