Inventing on principle

[john lunzer]

I was guided to this presentation another presentation by a former prominent Scala developer (Paul Phillips).

The presentation by Bret Victor is called, Inventing on Principle:

https://www.youtube.com/watch?v=PUv66718DII

I will only preface the video with Paul's quote:

If you don't come out of that going like, "That guy is talking about some stuff that's... gooood" then you're crazy!

I'm guess many here have already seen it, but if you haven't watched it in a while it's it's worth a second watch.