While many operating systems seem to try to prevent you from peeking under the hood, Unix and Linux positively encourage it.

One of the nice things about Linux and similar operating systems is that you can investigate something to any level you wish. If a program has a problem you can decompile it, debug it, trace it, and — ...

My laptop's fan ran a bit harder than usual for a few days. It was consistent even when only my browser and text editor were open, and nothing visible seemed to trigger it. Using htop showed normal ...