That is true but they should last for 20 to 30 years. Basically the life of the car. Better to make an informed decision every 20 years than be at the mercy of what is available at that moment.
Hydrogen engines just seem like a push for consumers to continue being dependent on fuel suppliers and also parts and aervice suppliers for an overly mechanical engine.
Make likes and comments have a stronger effect for smaller communities in the listing algorithm. The top of me feed is just c/technology and c/meme.
People are always convinced by nice corporate marketing. That will never change.
People post links to articles.
Micro blogging like Mastodon I like more for following the personalities. I don’t have a big attention seeking personality so I do not get a lot of followers on that type of social media. I am more of a reply guy so Lemmy style content aggregator with comments I am able to participate more in.
I assume you suggest DynDNS because most people’s home IP address does not stay static. My home IP has stayed the same for over 3 years. I guess there could be a security concern if the IP changed and another computer assumes my domain name, but that could be changed pretty quick.