"...is just a made up explanation for that. There is no evidence it exists."
The idea of dark matter is not that dark matter exists, it's that the dark matter theory is a placeholder used to explain the observations we see in the universe that are contrary to the physical understandings as we know them currently. The physicists are essentially saying there's a bunch of stuff we just can't explain, and dark matter is a concept that they refer to until we can finally figure out the bigger picture. It may be a while.
Japan has a single timezone for the whole country, for example
Same with Iceland.
I read a lot of reviews
Did you check to see what your eyes said?
"We're committed to this for the long term and will revisit opportunities for 3rd-party device partnerships as the category evolves."
I imagine the 3rd parties' investment in development to date was not zero. Good luck getting 3rd party developers to trust them down the road.
The reason that every major university maintains a department of mathematics is that it's cheaper than institutionalizing all those people.