Tell/ask HN: vimtutor teaches vim basics. Is there something similar for Emacs?

In one random comment I saw that the way for learning vim is to go to a command line and type in vimtutor and presto! Now you know enough vim to survive and learn more, all in 30 minutes. I did this last year and it's one of those things that I still think is a really good way of going about starting with vim.

I searched on HN for submissions about vimtutor and not one has taken off, yet the advice is something that I think that any person with the slightest interest in vim should know.

Relatedly, is there something similar for Emacs?