HN user
I love working remotely for all the usual reasons, plus this more recent one: my 2yo daughter had ever-more-terrible eczema which we eventually learned was caused by molds ubiquitous to the region in which we lived. So we moved. Across the country. The very next day. She's light years better, and the whole family is so much happier. No job hunt, no asking for a transfer; we just moved.
Holy crap. Looked at the site and thought, "hey, pretty cool. I don't know what I would use it for, though."
And then I watched the video and have been coming up with use cases non-stop. Starting with adding vim key-bindings I'm trying to learn to iTerm. Bye-bye yellow-stickies all over my monitor!
To your first question: for me it's a on-paper vs reality difference. On paper you're exactly right re "vm created from a bunch of script commands" will end in the same state.
The reality is that once the VM is built there is the temptation/opportunity to make ad-hoc changes for any variety of reasons. Those ad-hoc changes sometimes make it back into the official build process, but sometimes they get forgotten in the heat of the moment. With docker you can't do this...to make the necessary change you are also changing the official build process. No opportunity for the two to deviate.
Second question: Yes, that is my understanding (though not a use case I have atm).
Docker also enforces immutability. With a VM there's always the temptation to manually fix any issue that arises, and if you don't have some bulletproof way to document that then you'll have issues when you go to recreate the environment on a new machine. Docker kind of forces you to solve the original problem via the dockerfile, which is what will spawn images for any future installs anyway.
ssllabs took > 5 mins for a couple of sites i tried, while OP's was pretty instantaneous. It gave more detail, to be fair, but in terms of trying to catalyze a decision from a non-technical decision-maker, or for a quick sanity-check, I think I'd reach for expeditedssl.com first.
"And people like me, who pretend to themselves that they have a reasoned investment thesis, will say fuck it, and cash out in hordes."
That's a pretty accurate summary of what I did 20 minutes ago. I'm actually pretty optimistic about BTC in the long term, just don't want to ride the roller coaster in the short term.