Science, answering all those fun unanswerable philosophical questions since the 17th century. oooooh, they HATE that. This is going to have rage voting and banhammers abound. You've stepped right into the taboo topic of this place. See, philosophy is useless. It doesn't have any answers. It just makes questions. Which is a great thing to do and gets people thinking. It's a fun time. But the moment any of those questions can get answered, it leaves the realm of philosophical and enters reality, ie, the realm of science. Things like "What is man?" really got the ball rolling in ancient Greece, but once we learned about DNA, compatible code-bases, specification, and the horrifically nuanced details therein, philosophers had to move on to "what is a person?". And maybe we'll scoot them off that topic someday, but who knows.

Do "A tree falls in the forest" and Shrodinger's cat next.