
Frank T. answered 04/10/19
Professor and Editor w/ 40 years of university and tutoring experience
This is, of course, a complex matter that cannot be adequately answered in this format.
However, Ludwig Wittgenstein is famous for his examination of the problem of other minds, most notably in his book, Philosophical Investigations. There are also numerous scholarly essays and academic articles that explain and sometimes dispute Wittgenstein's ideas on the subject.
Here's a short video analysis: https://www.youtube.com/watch?v=YS4rYUye3Rw