When I was first learning electronics I bought a bunch of kits from Boldport. Including the "cordwood puzzle" and when it came I was so despondent. It's pair of PCBs and parts and YOU need to puzzle out how to put them together.

I remember thinking that I'd never be able to work it out. Just putting a kit together correctly and having it work was my limit.

I put the puzzle away, forgot about it.

I found it today ... guess what?

It's SO EASY.

Nice to be old and learn new tricks isn't it?

I used to think that this thing was so advanced and complicated and that only super experts would understand it at all.

I even thought it was sort of mean that Boldport made it so hard!

Now I'm like "this is baby stuff"

This has happened with mathematics for me many times. But only a few times with electronics. I'm totally self-taught in electronics. My knowledge is hard won, my students get to learn these things much faster with my help.

But, that's what I love about teaching.

What is something that once seemed advanced and impossible to you that later became easy?

Isn't that feeling the best high in the world?

@futurebird Any household small repair or upgrade. Things I've done by myself include changing light switches & fixtures, replacing toilets & faucets, laying tile, fixing a lawn mower, building an 8ft-long garage workbench, installing ceiling fans, etc. Turns out you don't need to hire people for these things. Thanks to the internet there are endless tutorials available for just about any small things you'd want to do around the house.