“If a tree falls in a forest and no one is around to hear it, does it make a sound?”
I fail to understand the concept of 'you only exist if you're being observed'. That would mean that anyone stranded on a remote desert island would not exist anymore. Yet they sit there waiting when someone discovers them. Robinson Crusoe would have not been written lol.
This is not going to sound convincing to a 21st century ear, but imagine if you will, that you lived in the pre-Kantian world of 1710.
What Berkeley would say, I believe, is that you exist as a finite spirit/person and that through your experiences of your sensations, you see God’s nature. And it is as a finite spirit that our perceptions of objects make them “real”. The Laws of Science/Nature is really God’s way of exposing/revealing ideas (which, for Berkeley, are the same as real objects/matter) through our sensations and thus experiences. When no finite spirit (an individual) is observing say a table, the table exists because an infinite spirit/God gives it existence.
Today many casual observers will slam on their mental breaks when they see a justification rooted in the existence of an infinite spirit. (We are very modern we say….) But in Berkeley’s time you had no choice but to explain how your idea(s) either supported or enhanced the prevailing concepts of God.
I’ll accept that the following is a bit of a square peg in a round hole; but substitute Supersymmetry for an infinite spirit. Supersymmetry, which is a principle and NOT a theory/law, provides us with a way of explaining a number of issues within the Standard Model and provides one possible way of establishing a unified theory between Quantum Theory and Relativity.
https://www.youtube.com/watch?v=0CeLRrBAI60I think that all this is pretty interesting stuff, but the point I want to make here is that without the principle of Supersymmetry we would have one less very useful tool to understand the universe.
Here is a definition of the word Principle: “a fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning.” For now, today Supersymmetry is in a sense performing the same role as an infinite spirit did for Berkeley.
BTW: I thought that the Ted talk presenter got too defensive when the moderator drew a connection to Berkeley, probably because of the dependency to an “infinite spirit” that he did not wish to make. After all, his thoughts are really driven by the logic of mathematical models and not any principle of a spirit!