When bzr, and then git, turned up and I started using them, I was told “this is DVC, which is a whole new model that takes getting used to”, so I was surprised it seemed normal and straightforward to me.

Then I found out that Sun’s Teamware, that I had been using for many years, was a DVC, hence it wasn’t some new model. I’d had a few intervening years on other abominable systems and it was a relief to get back to DVC.

Regarding the original post, are there really people around now who think that before git there was no version control? I’ve never worked without using version control, and I started in the 80s.

Sharing your work without cost to people who need it is pretty solidly left. But it certainly isn’t red vs blue, not least because party political colors vary by country and in the US, neither refers to a left-wing party, and in most countries red aligns with left.

why is there no switch to enable type checking at runtime?

Have you got problems this would solve? I’ve done a lot of type annotated Python at scale and I can’t think of an example.

Edit: given nobody in their right mind allows code that’s not checker clean.