"Looks like I might be wrong"

Nothing to see here, right? :)

TED: Julia Galef - Why you think you're right even if you're wrong

 

Still grepping the bash history?

"How to cycle through reverse-i-search in BASH?"

1. by repeatly pressing Ctrl+R

2. but also Ctrl+S, for the other direction - however, this only works after issuing an 

stty -ixon

source: unix.stackexchange

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Btw... same here :)

"How To Remove Old Snap Versions To Free Up Disk Space" - How to Keep Fewer Revisions

When in the mood to fight for the megabytes :) the Snap package manager by default keeps the 3 last versions of the snaps ... would that sound a bit too much, that number can be reduced:

https://www.linuxuprising.com/2019/04/how-to-remove-old-snap-versions-to-free.html

TL;DR

sudo snap set system refresh.retain=2