I know it's impossible, but I've always loved to get a hands-on demo... I'd love to learn the UI patterns involved, for example. I can always make my Emacs faster to interact with, dammit!
They have some public demos! https://youtu.be/ZAYiEyaUk2M?t=143&is=fXjn7PcE47Dw2Ayf
I had occasional access to a Bloomberg terminal 20 years ago and I still miss it. I miss it a lot. I wish they offered a cheaper option for users who only need to use it infrequently. I mean, $25,000 annually is brutal if you're not a broker-dealer.
If you're in New York City, the New York Public Library has a terminal you can use.