Portage allows that to some extent - you can make it install thr latest of everything. Depending on the ebuild, a lot of that will be straight from git. Master branch, not some random working one, mind you, but still.
Yes. In general - it's called live cd. Some distros ship with that in their installed image. {K,X,}ubuntu come to mind. Mint might do as well. You can boot into it and look around, see if basic stuff - network, audio, etc - works.
All negative comments at the time of writing, so I'll go first - the jokes I remember where quite funny to me. Not rofltrain, but on thr spectrum of funny none the less.
Chuck Norris does not turn on the light, he turns off the darkness.
I realise this is an older thread, but it could be caused by deleted files not being released by the application - a reboot or killing said application would help. Can be checked with
sudo lsof | grep deleted
It can also just be corrupt metadata about a file where a small file is seen as taking up some ludicrous amount of storage. This thought was triggered by you mentioning the thuderbird sent directory. Inspect the files there.
I don't get it. Is every state supposed to have a law about teachability (sure that's a word) of every event in history?
Laws are supposed to be generic. "Don't teach falsehood".