An abstraction like “object permanence” would be useful for a very wide variety of goals, maybe even for any real-world goal. An abstraction like “golgi apparatus” is useful for some goals but not others. “Lossless” is not an option in practice: our world is too rich, you can just keep digging deeper into any phenomenon until you run out of time and memory … I’m sure that a 50,000 page book could theoretically be written about earwax, and it would still leave out details which for some goals would be critical. :-)
An abstraction like “object permanence” would be useful for a very wide variety of goals, maybe even for any real-world goal. An abstraction like “golgi apparatus” is useful for some goals but not others. “Lossless” is not an option in practice: our world is too rich, you can just keep digging deeper into any phenomenon until you run out of time and memory … I’m sure that a 50,000 page book could theoretically be written about earwax, and it would still leave out details which for some goals would be critical. :-)