You're suggesting that as well as verifying the identity of a domain owner, that the CA must identify any similarity to already existing domains and not allow any that are arbitrarily too similar. That's just retarded.
But the certificate does authenticate that the domain in your browser URL bar is owned/controlled by the owner of the certificate. The fact that you are going to a different domain than the one that you expected is nothing to do with HTTPS. The whole point of a CA is to provide a certificate to legitimate owners of the domains. The point of a CA is NOT to determine that such-and-such domain is mistaken with another domain because the user is stupid.
You are entirely misunderstanding how SSL certificates work. LetsEncrypt allows the owner/administrator of domains to get and use a free SSL certificate and there is nothing to suggest that they are giving out certificates to non-owners of the relevant domains. The fact that you confuse paypal.com with playpal.com is not a problem with SSL encryption.
I was thinking more in terms of practicality - give it 50 years and most proprietary systems are dead in the water. Long term thinking is essential for any kind of long term archiving otherwise you'll just end up transferring the data around every 5-10 years.
It might not be the drivers' intentions to reduce highway capacity, but driving on a highway DOES reduce capacity for everyone else (to the tune of one vehicle). In large numbers, drivers can completely clog a road/highway and they then start complaining about there not being enough capacity for them all without realising that they are part of the problem.
It's not generally a good idea using trade secret and patent protected products for long term data archival. Eventually, the patents will expire, but in the short term, it restricts people from implementing and testing it and so you'll probably only discover the issues after it's too late.
It can be an issue as pretty much all sources of B-12 are meat and fish based, so a vegan is unlikely to get enough of it unless they make a special effort. Most foods aren't fortified with B-12 as B-12 deficiency is rare (unless you're a vegan). Also, as the body stores B-12 for about a year or so, it'll take a while for any deficiency to take effect.
Isn't a B-12 deficient diet an example of malnutrition?