Re-reading tfm, it definitely had an answer to my dumb question(basically the same as any regular C pointer), but I still get the feeling that the explanations make jumps that may be obvious to you but absolutely not to me.

I sort of get a sense of what the flight pointers do after reading the linked page with the assembly listings( which on mobile looks like you're discussing hex dumps until one tries side scrolling, btw ) but my brain would expect something along the lines of: "this is the flight pointer and this is how it is managed for local variables, global variables, etc. This part of it is what your C program sees" at the beginning of the invisicaps article rather than "pointers are 64 bit like in regular C proceeds to talk about a tuple containing two pointers"(at least that's how it reads to me).

Probably just laziness on my part.

That’s really good feedback about how to better talk about this stuff. Thank you!

InvisiCaps are counterintuitive. Took me a while to come up with them. I still haven’t found a really clean way to explain them to folks