I once fixed a floppy that someone gave to me because it had bad sectors by sticking it under a CRT & degaussing it. Once formatted it worked great thereafter.
Speaking of CRTs, I had a magnet on a stick that looked sort of like a pen (although it was retractable & meant for retrieving things)...color Magna Doodle, degauss to erase.
So I was not the only one to do that repeated-string-mapping method of compilation (although I did mine in high school (using C for bootstrapping, rather than QBASIC, IIRC)...earlier I was too busy playing with Visual Basic, which had its own compiler)...interesting.
I never tried to make my compiler optimizing, despite having a plan in my head to do so, because the binary for the compiler itself already fit in 64KB that a
Suppose someone wants to take some blob of data from one location to another without having to upload & later download it (say, the connection at one or both ends is significantly slower than the flash storage on their phone, or the data is sensitive (but no so sensitive that it warrants a dedicated storage device...perhaps this case is rather unlikely)). They are not going to use it on the phone, so no need for a viewer, but they still want a way to transfer it (without having to find & keep track of a memory card, since they are already carrying their phone).
Well, I suppose one answer is to convince the device it is some supported file type & then fix that at the other end. But that seems silly.
You cannot experience not existing. So if there is a unique continuation of your mental state, it seems you would experience it. Suppose you are taken into a hospital room with no windows, anesthetized, destructively scanned, reconstructed, & then woken up later. How is that different (from your perspective, not the medical team's) from just being anesthetized & then waking up later? How do you expect your experience to differ in the 2 cases?
As for uploading: Why should it matter if the form is different, so long as the logical & causal relations of the parts are the same? But if the form really does matter, we just run a simulation of the underlying biology, or even chemistry or physics, rather than just a functional-level brain simulation. Even if quantum effects matter, then use a quantum computer. (Not saying this is practical—just as a thought experiment.)
The trouble with doing something right the first time is that nobody appreciates how difficult it was.