The most prominent is the hyperloop. The energy needed to maintain the vacuum entirely cancels out, and possibly adds some, energy savings from reduced friction. Plus the speed gained would be negligible compared to a well designed atmospheric bullet train. It adds cost, complexity, and energy usage for literally no reason
I never heard anybody claim that Hyperloop vacuum tunnels were about energy savings. Hyperloop is about replacing air travel with an alternative that could offer similar or higher speeds. If you want to go 1000+ km/h (or multiples) reducing friction is a requirement and definitely not because of energy savings but because the vehicle would heat up and/or break, and then of course the turbulence and noise.
Well maglevs are not used today exactly because of this issue - going past 600 km/h is dangerous - causes noise and turbulence affects the train too much, so it makes sense to venture in another direction, such as maglevs but in tunnels.
What's addressed in your comment? You didn't show any other alternative offering speeds like Hyperloop, in theory, could.
Not sure what you mean by your question about "which designs" - well, Hyperloop. Or do you expect me to hand you a finished project? It's just started. Even bullet trains took decades to get from proposal to project to finished.
He did none of that single-handedly though. Thousands, maybe millions of ours of man hours went into making all that happen. What spurred my original comment was that when I hear him talk, I think he does fail to acknowledge the people around him a little to conveniently. I don't care, I just don't think it's a good quality and I think longer term, it will probably lead to him having lower performing teams and people around him.
See my comment below but TL;DR I’d like to hear a bit more about “the great team” rather than Musk because I know behind that interview what hard work people are going through to make the things he is showing off happen.
This one , as someone who often reads these types of mails is just a pep talk, to tell someone they respect me more than a rich person isn’t very flattering.
Look I think you just like Elon Musk a lot. I don’t mind him either, I just know almost all of his success is built on the back of a lot of hard working individuals, which I think is pretty hidden behind a dude in XXXL T-shirts
I actually thought more about this and I am curious, why you sent that video, what goalposts are you referring too?
I'm saying that I personally believe that Musk can have a pretty large ego at times, I don't find him to be a particularly humble person. I cite the time he injected himself into the Thai Cave Rescue and then called the guy who rejected his ideas a "pedo guy"? That's the type of thing I'm talking about.
Whenever I see him interviewed I can't help think of all the smart people who help him become that successful...why are you so worried about that?
I think that thread with JD is kind of reflective of my feelings. It's a blasé way to talk about a fairly large scale project which would have pretty big large impacts for a lot of people, including shareholders and employees at the company (Twitter), and to just talk about it like you're inviting someone to the movies seemed funny to me.
It almost just feels like you had that link bookmarked and were looking for someone to send it too?
No because nearly every single complicated thing we’ve done, every problem solved has likely been done on the back of prior knowledge or technologies which were provided by others, there in lies my point.
You watch someone like Musk and you enjoy the spectacle and the idea of an engineering hero billionaire, or you realise that while he may have brilliant ideas and moments, I find he often fails to acknowledge the fact that he isn’t an island and even if he says things like, “I have a great team” I think it’s not enough because I’m generally one of those people who spends a LOT of time solving problems for other people within a team to help make complicated things happen…I wouldn’t have the time to go on TV half of the time which I why I likely know who is doing the real work.
