I second the advice to switch to a different/previous/known good kernel. That has been the cause a most boot problems for me. I just had it happen on a VM a couple of weeks ago, so I switched to the old kernel, then removed the new kernel. I’ll wait for another kernel before upgrading.
It’s probably worth scanning your disk just in case as well.
As an older coder, I’ve spent time commercially programming in a lot of languages (C, C++, C#, Python, TransactSQL, Javascript, and a few more - with many years of experience in each. I even spent time squeezing some forth code into a small programmable chip.
My first comment on this « attitude » expressed above is that you need to pick the language (and its libraries) that is best for your problem space - each will have advantages, including constructs and libraries to suit whatever domain you are working in. Hence forth for a microchip, TransactSQL for DB stored procs, python for general purpose command line work etc.
Having said that I do want to present one viewpoint which could give rise to this above expressed opinion. It’s an area that C is considered pretty strong - specifically language complexity. When coding in C, I really felt like I knew every nook and cranny of the language, exactly how every structure would be packed, what the assembly would probably look like.
Python (and perhaps C#) are currently my favorite languages - python only has 36 keywords and while I don’t have the same solid grasp of what’s happening under the hood, I do feel like there are very few surprises and corner cases to the language, even while supporting some complex programming methodologies.
The opposite of this is (IMHO) swift. What started as a really nice language with a clean syntax and solid libraries has morphed into a monster with 232 keywords. Does any swift programmer have a solid grasp of it all?
I would say that C++ is at the complicated end of the spectrum - spend some time inside Boost and their extreme use of templates/meta-programming and it will make your head spin. The Boost developers are super smart people, but its non-trivial to understand what is going on. Having said that, C++ does make you feel that you can code close to the machine and have a good handle on what is happening under the hood.
This level of control is probably one place where this « only C and C++ code is any good » attitude came from. Its not an attitude I support.