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Trains have been proven to be able to go at least 375mph [0]. That would make NYC->SF take 6.9 hours to travel the 4162 km. The current average flight time from

Trains have been proven to be able to go at least 375mph [0]. That would make NYC->SF take 6.9 hours to travel the 4162 km. The current average flight time from NYC to SF is 6.7 hours. So, it's at least technically possible. China is doing R&D on a partial-vacuum train (basically Musk's hyperloop thing) with a target of 1,243 mph[1]. That's probably a pipe dream, but worth mentioning nonetheless. > The government should of [sic] bailed out Spirit instead. I'd be okay with this if all the taxpayers were granted equal shares that their collective money could have purchased at an imputed no-bailout price. 0: L0 Series SCMaglev 1: T-Flight train

haldujai 5mo ago
> The current average flight time from NYC to SF is 6.7 hours. What's your source for this? I take this flight a lot and I find it hard to believe it's more than 5.5-5.75 on average. Looking at the last few weeks for one of them[0] supports my experience. Maybe your number has TSA/airport time included. [0] https://www.flightradar24.com/data/flights/ua1777 https://www.flightradar24.com/data/flights/ua1777
- dml2135 5mo ago
  It's probably scheduled times. I find that time in the air ends up being about an hour less than the time on the ticket.
999900000999 5mo ago
That's straight math. Not assuming any stops or slow downs. According to Gemini this hypothetical train would take about 18 hours. It would also cost hundreds of billions of dollars and a decade to build. Doesn't do much for seeing Uncle John next Tuesday. I like trains. I like them a lot. But they don't work over long distances. Particular when you have dozens of state and city jurisdictions to cross. Each of them get a vote. Honestly I'd be happy just to have quality HSR on the East Coast. Boston to Richmond takes like 12 hours right now. Maybe the West Coast could get a Seattle to San Diego route.
- testing22321 5mo ago
  > It would also cost hundreds of billions of dollars and a decade to build. Doesn't do much for seeing Uncle John next Tuesday. You just described the building of the interstate highway system, but I doubt there’s a person alive who would say it wasn’t worthwhile. I fear Americans are simple to selfish to have any desire to do time consuming expensive things that will improve their country long term. They just want benefits for themselves , now.
  - 999900000999 5mo ago
    I would like to fix our health care system first. Meanwhile, the government could announce a bailout of Spirit tonight. Wouldn't take nearly as much effort.
    - testing22321 5mo ago
      > I would like to fix our health care system first Good ol Zoidberg once again says “why not both?” If you don’t fix anything else until healthcare is fixed, you’ll be fixing nothing until the end of time
  - pm90 5mo ago
    I think Americans aren’t as selfish as most people believe; it’s just that they don’t know any better. Education and awareness is key to change that.
    - bdangubic 5mo ago
      I don't think it is neither education nor awareness, our core problem and what is an eventual doom of this country lies in the fact that with the two political parties that we have and extremely non-functional government we are no longer capable of doing long-term things. whatever party X tries to do, they get a few years and then when party Y takes over their first order of business is to dismantle everything that party X did (tried to do) in the previous two years. while china can create "10-year plan" the america is no longer capable of creating any such thing and this is destroying the country, little by little...
deleted 5mo ago
[deleted]
jodrellblank 5mo ago
> "China is doing R&D on a partial-vacuum train (basically Musk's hyperloop thing) with a target of 1,243 mph" When the vacuum fails - mechanical failure, human error, natural disaster, attack - air is going to rush into the tube. The speed of sound is how fast air molecules move, so train doing 1243mph might hit into a wall of air coming the other way at 767mph for a 2000mph collision. Don't think "wind isn't that fast", think vacuum implosion[1][2]. The weight of 60+ miles of atmosphere pushing down trying to force air into the tunnel. The principle that moves atmospheric steam engines. The train will then be blown backwards into the train coming behind it for another 1000mph+ collision. This will be the Hindenburg of the Hyperloop. [1] https://www.youtube.com/shorts/j-s5Ut5cm50 https://www.youtube.com/shorts/j-s5Ut5cm50 [2] https://www.youtube.com/shorts/if9xxrRouRY https://www.youtube.com/shorts/if9xxrRouRY

haldujai 5mo ago

> The current average flight time from NYC to SF is 6.7 hours. What's your source for this? I take this flight a lot and I find it hard to believe it's more than 5.5-5.75 on average. Looking at the last few weeks for one of them[0] supports my experience. Maybe your number has TSA/airport time included. [0] https://www.flightradar24.com/data/flights/ua1777 https://www.flightradar24.com/data/flights/ua1777

dml2135 5mo ago
It's probably scheduled times. I find that time in the air ends up being about an hour less than the time on the ticket.

999900000999 5mo ago

That's straight math. Not assuming any stops or slow downs. According to Gemini this hypothetical train would take about 18 hours. It would also cost hundreds of billions of dollars and a decade to build. Doesn't do much for seeing Uncle John next Tuesday. I like trains. I like them a lot. But they don't work over long distances. Particular when you have dozens of state and city jurisdictions to cross. Each of them get a vote. Honestly I'd be happy just to have quality HSR on the East Coast. Boston to Richmond takes like 12 hours right now. Maybe the West Coast could get a Seattle to San Diego route.

testing22321 5mo ago
> It would also cost hundreds of billions of dollars and a decade to build. Doesn't do much for seeing Uncle John next Tuesday. You just described the building of the interstate highway system, but I doubt there’s a person alive who would say it wasn’t worthwhile. I fear Americans are simple to selfish to have any desire to do time consuming expensive things that will improve their country long term. They just want benefits for themselves , now.
- 999900000999 5mo ago
  I would like to fix our health care system first. Meanwhile, the government could announce a bailout of Spirit tonight. Wouldn't take nearly as much effort.
  - testing22321 5mo ago
    > I would like to fix our health care system first Good ol Zoidberg once again says “why not both?” If you don’t fix anything else until healthcare is fixed, you’ll be fixing nothing until the end of time
- pm90 5mo ago
  I think Americans aren’t as selfish as most people believe; it’s just that they don’t know any better. Education and awareness is key to change that.
  - bdangubic 5mo ago
    I don't think it is neither education nor awareness, our core problem and what is an eventual doom of this country lies in the fact that with the two political parties that we have and extremely non-functional government we are no longer capable of doing long-term things. whatever party X tries to do, they get a few years and then when party Y takes over their first order of business is to dismantle everything that party X did (tried to do) in the previous two years. while china can create "10-year plan" the america is no longer capable of creating any such thing and this is destroying the country, little by little...

deleted 5mo ago

[deleted]

jodrellblank 5mo ago

> "China is doing R&D on a partial-vacuum train (basically Musk's hyperloop thing) with a target of 1,243 mph" When the vacuum fails - mechanical failure, human error, natural disaster, attack - air is going to rush into the tube. The speed of sound is how fast air molecules move, so train doing 1243mph might hit into a wall of air coming the other way at 767mph for a 2000mph collision. Don't think "wind isn't that fast", think vacuum implosion[1][2]. The weight of 60+ miles of atmosphere pushing down trying to force air into the tunnel. The principle that moves atmospheric steam engines. The train will then be blown backwards into the train coming behind it for another 1000mph+ collision. This will be the Hindenburg of the Hyperloop. [1] https://www.youtube.com/shorts/j-s5Ut5cm50 https://www.youtube.com/shorts/j-s5Ut5cm50 [2] https://www.youtube.com/shorts/if9xxrRouRY https://www.youtube.com/shorts/if9xxrRouRY