Mindcraft

I think seeking value in hobbies is a problem, they don't need to have any inherent value for the hobbyist other than being fun. I say it is a problem because it leads to a kind of mentality where one seeks productivity and optimization of RoI in all things in life. You are allowed to enjoy thing for no other reason than being fun. That being said, I agree with you, but I feel this kind of thinking could lead to see others who just want to enjoy a hobby as less than me, and that's where I draw the line.

I wonder if you could change what a HDD writes or reads with a specific pattern of vibrations, making it "fail" selectively.

The fact that the first legally compliant cryptocurrency is backed by oil reserves says a lot.

Discrimination is not by definition unfair, the context is important, or do you think aiding people in need but not those who aren't is unfair?.

If you want to reach a balanced state from a unbalanced one, you need to discriminate to provide more for the people that are behind.

Why a private company would invest on better technology if it doesn't have competitors? It's not profitable for a service provider to invest, and even if there are competitors, most of the time, like with cellphone carriers, they agree not provide a better service so they can all take their portion of the cake without expending a dime.

Evidence that private air traffic control use/would use more modern tech?

Although I understand your point, the particular example you pick is somewhat easy to fix. Using image recognition it would be fairly straightforward to check if there is a park and what amount of that park could be viewed (maybe using geolocation to check for more images of the park to compare)

And to a de-facto government.

If you are paying for an expensive fish and are served a cheap one, you are being ripped off. Someone may not care about what kind of fish they receive, but charge them more for that and I would say almost 99% would care.