Have you ever worked at large old corporation?
I'm not sure you understand that it's way more than "large old corporations" that use it. Everyone uses it, from large multinationals to small one-taxi shops, and even guys like you and me in personal projects. This has been going on for years. I really don't know what led you to talk about large old corporations, seriously.
I’m not sold on user replaceable phone batteries, but USB-C was a long time coming.
As someone who had a perfectly fine Android smartphone die because its battery went dead, and had to replace it with an off-brand one to keep it ticking... I can assure you that the lack of support for user-replaceable phone batteries is forcing people to throw away perfectly good hardware.
There are parallels to be drawn between licensed professionals (like doctors, CPAs, lawyers, civil engineers) that they all have time under a professional and the professional then signs off and bears some responsibility vouching for a trainee.
We need to keep in mind that the main value proposition of these licenses is to bar people from practicing. There is no other purpose.
In some activities this gatekeeping mechanismo is well justified: a doctor who kills people out of incompetence should be prevented from practicing, and so do accountants who embezzle and civil engineers who get people killed by designing and building subpar things.
Your average software developers doesn't handle stuff that gets people killed. Society gains nothing by preventing a software developer from implementing a button in a social network webapp.
Microservices are not just about scaling and performance but it is a core advantage. To say they have “nothing” to do with it is outright false.
They have nothing to do with performance. You can improve performance with vertical scaling, which nowadays has a very high ceiling.
It's not a coincidence that startups are advised against going with microservices until they grow considerably. The growth is organizational, and not traffic.
Microservices are about modular design and decoupling units of code from each other.
Yes, but you're failing to understand that the bottleneck that's fixed by peeling off microservices is the human one faced by project managers. In fact, being forced to pay the microservices tax can and often does add performance penalties.
The problem with this approach is that switching from vertical to horizontal is extremely hard if you didn’t plan for it from the start.
I think you're missing the point that more often than not ain't going to need it.
In the rare cases you do, microservices is not a magic wand that fixes problems. The system requires far more architectural changes that go well beyond getting a process to run somewhere else.
I'm not sure you understand that what a union does or does not do is completely irrelevant and besides the point. Python's protocols add support for structural subtyping, and enable both runtime and build-time type checks without requiring major code changes. Don't you understand what that means?
Once again: https://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect