That 44b had to be paid in real cash, not just the current theoretical value of the sum of his shares. He sold quite a lot of Tesla shares afaik to banks to give them a “small loan”.

Though to add: many things in your file system are listed as “files” in a directory, but are completely virtual with varying ways on what they do when written to/read from. (Also, linux has streams and files, not only files) E.g. /dev/null will read zeros, and discard data written to. But it has no physical backing.

HttpClient. You don’t necessarily need a third-party tool for rest calls or the like, and it really is quite handy!