Had someone contact me because a browser interface was 'down' and it was actually a cert issue. It surprised me that in an IT context, this person didn't have a basic understanding of SSL certs. They didn't even know how to add a cert exception.
It got me thinking, what basic ubiquitous things am I a dumbass about outside of IT?
Ive seen lots of 'fun facts' compilations, but it would be better to get a wide range of subject suggestions that I can spend 30 minutes each or less on, and become a more capable human.
Like what subjects would plumbers consider basic knowledge? Chemical interactions between cleaning products and PVC pipes?
What would an accountant or a landscaper consider to be so basic its shocking people can live their lives without knowing any of it?
For most areas of expertise, its difficult to know even what the basics are to start with.
How to do basic DIY. Do you know all the functions of your drill? Can you screw something in to wood, brick, plaster - for dab and cavity? What fixings and screw types should you use?
Can you re-wire a plug? Change a tap? Wire an Ethernet connector and punchdown?
Balance your books, calculate your tax, basic car maintenance...?
As a software engineer or IT person it's easy to think we're all so very smart, but anyone skilled in ANYTHING will know so much you don't in their own subject.
Weirdly enough I'm an IT guy and can do all of those things, some of them only in a basic way which is why I leave taxes and car maintenance to the professionals.