Recent comments in /f/Futurology

OwlBeneficial2743 t1_j8g60xe wrote

I suspect this is more of a people thing than a technical challenge. Every time there’s a accident involving an autonomous vehicle, it makes the news and people w too much time in their hands (like me) will pile on. So, does the tech need to be ten times safer, a hundred times, a thousand times than the traditional way, who knows.

At least the issue hasn’t yet become political yet, which is surprising.

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Futurology-ModTeam t1_j8g59uw wrote

Hi, otas1. Thanks for contributing. However, your comment was removed from /r/Futurology.


> > No just no fuck off


> Rule 6 - Comments must be on topic, be of sufficient length, and contribute positively to the discussion.

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king5327 t1_j8g3a59 wrote

A tunnel is a terrible place to have a train, on account of needing enough space around it to pass the air, else you enjoy a pressure bubble at the front of the train. But increasing the cross section of a vacuum tube is a non-negligible nerf to the effectiveness of the vacuum pumps, causing similar drag anyway.

This leads me to believe that even if the technology works perfectly, the numbers alone won't allow for the performance that was promised, unless at extraordinary expense in running the pumps.

Edit: Also, if there are any magnets at all on the car, or along the length of the tunnel, induction is going to be a surprise drag.

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MarkNutt25 t1_j8g2xkn wrote

The ISS is already basically self-sufficient when it comes to air and water. And we've grown food in space several times, so that part is certainly technologically possible.

Such a structure will still rely on parts shipped in from Earth to maintain many of their systems, though. There's just no way to produce absolutely everything you'd need without basically replicating Earth's entire economy from the ground up.

So its unlikely that such a structure will ever be a completely self-sufficient ecosystem. At least, not until we invent a Star Trek-style replicator!

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Riccma02 t1_j8g1rz2 wrote

>Since his name will come up, let's clarify that Elon Musk did not invent the idea of a vactrain.

No, some victorian era crackpot kook invented it. 150 years ago, all of these gadget-bahns were invented by some top-hatted jackass. He took all of his profits, from sending children to die in the mills, and put it all on his vision for the future. Then all of those ideas failed spectacularly and were left in the dustbin to die, until now; when the marvelous Mr. Musk comes along and decides to rebrand them as the future. Novelty is a brain poison.

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hawkwings t1_j8g1ogl wrote

I would say yes. We would need an iterative approach where we try something, detect flaws, and fix those flaws. It would take many years to fix all the flaws that can't be fixed without Earth's help. Radiation shielding is easier on the moon and mines can provide resources for repairs and expansion. The goal would be to get to the point where they can repair things without Earth's help. I'm not sure about a space station orbiting Earth. A space station near an asteroid would have a source of resources.

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TenesmusSupreme t1_j8g1jfr wrote

Surgical robots have been around for decades. Mako has struggled to get sales and was bought by Stryker in 2013 mainly as a way for them to place more Stryker implants in knees. While there may be some minor benefits of precise measuring, the small benefits may not outweigh the costs. It’s hard to find a successful Mako program at any hospital. With daVinci, the costs increase while the benefits may not justify it. I’m all for advancing healthcare with surgical platforms, but robotic instruments are not always the answer. They still have a place in the OR… just not front and center as the public might think.

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peregrinkm OP t1_j8g1brx wrote

Uh, let's not harvest chunks of the moon just because we can. Also, I think the moon wouldn't have enough gravity to hold onto an atmosphere so it would need to be a totally sealed structure. It would be a completely controlled environment, so they could set it to ideal growing conditions.

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JCPRuckus t1_j8g19vp wrote

>“All I said was that we well might fail”. That sentence let me know how you think. People that think like that fail immediately since they don’t want to even try. In fact that type of thinking is lower than failure, since failure actually involves trying first.

Except I didn't say we shouldn't try. I ignoring things that we know work in the meantime doesn't make any sense.

Again, you're putting words in my mouth.

>In fact that type of thinking is lower than failure, since failure actually involves trying first.

Get over yourself. You can't even read and reply to what I actually say. You aren't superior to anyone.

>I’m glad they are trying to build hyperloop. Whether it fails or not. At least we are trying something new.

I never said they shouldn't. I said that forgoing HSR on the hope that maybe Hyperloop will be feasible, much less better, one day is stupid.

>Not rehashing the accomplishments of previous generations.

Again, you don't seem to understand the difference between "trying" something and "banking on" it. It's not bad to have things that actually work while you're trying to do new things.

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