Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

This is the best description of entropy and information I've read: https://arxiv.org/abs/1601.06176

Most of all, it highlights the subjective / relative foundations of these concepts.

Entropy and Information only exist relative to a decision about the set of state an observer cares to distinguish.

It also caused me to change my informal definition of entropy from a negative ("disorder)" to a more positive one ("the number of things I might care to know")

The Second Law now tells me that the number of interesting things I don't know about is always increasing!

This thread inspired me to post it here: https://news.ycombinator.com/item?id=43695358



Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: