My strategy:

a) Install distribution according to purpose (default: debian, laptop: ubuntu, server/with supported commercial sw configurations: red hat) out of the Box
b) Verify if additional features needed are there
c) Add the features you really need which are missing
d) If it does not work, follow the documentaiton
e) If following the documentaiton does not work withing a reasonable time, change distribution to a more conservative one and repeat from step a
f) perform testing
g) optimize performance (up to compiling a new kernel)

Has served me well the last 20 years. If i need knowledge about systemd, i hope its documented well, otherwise its off the list.

So which of the most used apps on android use openGL?

a stupic calculation.

Preventing the worst 1% of market participatns from offering via a specific platform will never shift the market share of the whole market by 1%.

Program an App in ANSI C does not equal to programming a part of an app in ANSI C.

"most of the most-downloaded apps" is so vague that it's a non-information. My viewpoint is not "why knowing C is cool" but "that is the shortes route to delivering software to many platforms". If i would be in the business of making a "most downloaded app" then probably i could easily spent a few man-years for platform specific optimizations.

If that would be true, then lobyists who manage to reduce the competition by 1% probably would not be worth their money.

I talk about devices, you talk about microntrollers/processors.

You can not program 1B android devices in ANSI C. You can not program java smart cards in ANSI C.

Hypothetically, you could modify parts of all devices in ANSI C, but this this you essentially disassemble the device.

I agree, if you interested in firmware development, ANSI C is probably the right choice.

And i never will store data on anybody who tells me that he does it for free. Either he looses money, or he has something else in mind.

No - there are always definitly easy to spot bad actors on such platforms. These can range from stupid assholes who want to rent out their garbage collection room, people who are acting like they ren something out in private, but in reality operate a full-scale business circumventing regulations and possibly taxes.

It seems that in NY there are 10000s of hosts. Figuring out the most criminal 1% of these has nothing to do with killing innovation but more wit doing a service to the customers (reputation for the hosts and safety for the customers).

When you operated the crank for a about 20 seconds, you could turn on the buzzer (not very loud, but louder than you could talk or knock) for a few minutes. Probably more useful for the finding you in a burning house (where you cant breathe much) than in a collapsed one.

I live in an area without Earthquakes.

But when i lived in Japan:

-Emergency radio with Crank generator and LED flashlight, Buzzer (in case you are trapped inside a (partially) collapsed house and dont want to shout all the time), mobile phone charger, and radio receiver for all channels, lying close/in my bed (http://tlet.co.jp/pro_radio/ty_jr11/index_j.htm)
-2 Liters of water (i lived alone)

In Japan we had earthquake drills of the housing community one time per year, and one time per year in the company. In the housing community we were shown the nearest small emergency area, which had food and water stored in boxes, medical supplies and tools/shovels. We trained how to use fire extinguishers.
And everybody shoudl have had look at (and i had) how to reach the next bigger emergency area (which typically was a bigger public park with an area for helicopter landings and some toilets.

The point of java is that you can program more devices on this planet in this language than with anything else.

Java has penetrated all areas of computing, from embedded (down to chipcards) to mobile, from science to database and web servers.

Java has inherent cross-platform mechanisms for elementary things for which c does not have these (treads), and there are (most of the time free) libraries inferfacing in all directions.

Dynamic, standardized binding to databases and XML makes it extremely easy to persist you data in a well-documented and well-tested structured way.

Java has nearly all language features you could desire.

And last but not least: eclipse is a great free IDE. AMong the free IDEs there is IMHO no combination of language+language tools which boots your productivity for specific tasks as eclipse does.

The real business decision would be how many people you put into development and how many requirements engineers and SW quality people you put into the project to validate is the software (including hte database) conforms to the different customers needs.

Actually, even janitors and low level administration staff make a difference.

The new Employee who asks for something simple and reasonable to be done can get the response "sorry, you can not order me to do that" or he can just do it. In the latter case the new employee may get another picture of your company.

The team assistant with not even a bachelor degree can significantly influence the output of the specialist.

If i see that a demotivated mode of work is bussiness as usual in a company, then i run.

If they remind you of Ukraine, then you are an idiot without any sense of respect for about 2000 deaths. In Ukraine they use artillery and air strikes. Already in the bery beginning of the conflict snipers shot into protesters.

IMHO the problem in the US is not the police. The problem is that the police needs to be more heavily armed than the civiliangs. If i should control driver licenses as a policeman in a country where a significant fraction of the population has firearms, and a non-negligible part of the population has a acceptance for anti-state/anti-government ideolody (tea party), i would be freaking nervous.

To me there is a significant difference between somthing affecting all stored dasta and only affecting data accessed after a specific date.