That just means the curvature of spacetime is negative.

Yes normal password but it happens super early on mine, and once you log in there is a boot progress bar afterwards. This is an Intel Mac, might be different on apple chips.

Mac will ask you to “log in” very early in the boot process to decrypt the disk, I assume it keeps the drive key encrypted with your password somewhere.

Much better to use a phone running an os built by an advertising company who decided that “don’t be evil” just isn’t them anymore.

A product isn’t just what parts go inside.

Uninstallled python to upgrade it. Pretty much the entire os depends on python and was also uninstalled.