

Yes, it’s normal, or at least it’s not super unusual. People can be the meanest to your face and then pretend that nothing happened. Is it because they are ashamed of themselves? Because they want to pretend that nothing happened and hope you won’t bring it up? Because they want to maintain happearances in front of others? Are they trying to gaslight you? I don’t know, but it did happen to me and to other people I know.







Unfortunately, that is not really possible.
The UEFI standard, a pdf that describes in detail the unified system that all motherbpards use during the boot process, is 1200+ pages long. And that’s only one of the many subsystems in a modern system (that gigantic pdf tells you nothinf about PCI, about ACPI and usb, nor any other hardware peripheral). Also, since you are talking about a modern system, you also would need kernel, drivers and operating system calls documentation. All of these exist (for an open source OS like linux, and if you follow the aforementioned standards), but bundling them in a book, and keeping them uodated, would be just impossible.