[ELI5]Why do loading progress bars seem to always stop at 99%

Question

[ELI5]Why do loading progress bars seem to always stop at 99%

In: 3

Answer 1

Usually, at 99%, all the parts have been downloaded and the file needs to be reconstructed back into a whole/usable file.

However, sometime progress bars are purely eye candy. It’s just programmed in to give you the illusion of progress.