ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
[personal profile] ysabetwordsmith
Here's a review of physics from 2021

I keep waiting for people to find gravitons, but honestly, I'm kind of glad they haven't.  As much damage as they've done with other scientific advances, they don't need graviton technology where fuckups can crack a planet's crust or fling a space station across the galaxy.

(no subject)

Date: 2022-01-07 12:27 am (UTC)
kengr: (Default)
From: [personal profile] kengr
Well, if certain theories are anywhere near right, it;s possible that somebody could trigger a domain transition and that'd end the universe.

Of course, the fact that the universe *is* here argues that it's damn hard to do that.

But we're still stuck with the fact that every year the IQ required to end the world drops....

Re: Thoughts

Date: 2022-01-07 05:15 am (UTC)
kengr: (Default)
From: [personal profile] kengr
As numerous people have said, this is *the* reason we need to get self-sufficient colonies *off* earth.

That way we won't have all our eggs in one basket.

Also what we'll learn about closed ecologies will be needed to terraform earth. :-(

If we can get over that hump (and regardless of how folks feel about Branson, Bezos, et al they *are* working on getting us off this rock) then destroying humanity gets a lot harder.

Silly thought. Folks who think the California agriculture inspectors at the border are a pain will be unpleasantly surprised at the inspections they'll get if they visit a colony that still has a somewhat unstable ecosystem!

Not so silly thought. In a widespread interstellar civilization there are going to be horror stories about colonies that accidentally killed a critical link in the local ecosystem before they could get a sufficiently large "terran" ecosystem established.

Re: Thoughts

Date: 2022-01-08 07:59 pm (UTC)
From: (Anonymous)
>>*ponder* You know what we could do now? Bank some stuff on the Moon and Mars. Information at minimum, biological samples would be better. Resources for colonists if we're lucky, refugees if not.<<

I recall reading something about using the Moon as a naturally occurring cryogenic site - it wouldn't be too much of a stretch to have freeze-dried embryos or seeds, instead.

>>*shrug* You rarely see more than one type of genius per person. It can happen, but it usually comes at the cost of even more weird shit. Because the human brain is finite and just not really all that big when it comes to storing something as massive as a soul. If you want to upgrade one area, you're going to have to throw out something else -- maybe a lot of somethings. I have a linguistic coprocessor that does things other people insist are impossible. I also have the shareware version of the memory module that normal people use for names-faces-dates-etc. instead of their nice factory model. I wouldn't trade it.<<

I suppose that the overlapping skillsets allow us all to access more information - if we can interact fluently and balance out all our different skillsets.

>>And I'm pretty sure those guys wouldn't trade whatever they tossed for what they wanted to pack into this life. People should STFU and let them work. So they're assholes, so what? Most genii are. We need genii, the popular people aren't doing jack to save us.<<

I don't really like the flavor of jerkishness that involves someone essentially flaunting extravagant survival fulfillments while failing to provide for the survival needs of their followers. To be fair, that probably has a lot to do with my own upbringing and individual life experiences, and how those things have shaped my values. And the et all folks are probably acting ethically by their values...which mismatches (or seems to mismatch) enough with mine to cause error messages. And some of my annoyance is at society at large, which pushes all of us around like chess pieces on the gameboard...

...I guess I like the idea of exploration and scientific advancement...but not when it feels like it's being paid for at the expense of people's wellbeing. So go forth! Explore, advance! Do your great works! But try not to shred or stomp other people while you're working.

(no subject)

Date: 2022-01-07 12:55 am (UTC)
siliconshaman: black cat against the moon (Default)
From: [personal profile] siliconshaman

I suspect the problem with Gravitons and finding them, is that they don't actually exist. There is a case to be made that the reason the Standard Model and Special Relativity don't reconcile is that the SM describes particles, and SR is describing a distortion or stretching in space/time, which only behaves somewhat like a force, but isn't really, and thus it doesn't have a particle to act as it's mediator.

Of the fundamental forces, gravity is a different animal really.

Except that gravity kind of does have gravitons. Down at the Planck scale of the universe even the fabric of space/time is 'granular' or quantised. So, a gravitational distoritian behaves as if it is made up of particles or wavelets... basically, virtual particles that don't exist, but reality behaves as if they do. (boojums, not quarks if you like)

Of course, I could be wrong, but that's how it seems to me. Not sure if that advances things however... which is probably just as well as you say. Because one of the things you could do with gravitions is create some nifty wormholes with fairly little power.

Which doesn't sound bad, until you realise you could open a 1cm wormhole connecting outer space with the inside of someones skull. Death by slurrrp!

Re: Thoughts

Date: 2022-01-07 01:18 am (UTC)
siliconshaman: black cat against the moon (Default)
From: [personal profile] siliconshaman

The problem with sucking the air out of a room, is that most rooms aren't air-tight. (although I can see why that would slip your mind.)

Mucking about with the local field might be possible. But Planets have honking big fields that would take a LOT of energy to fiddle with, even on a small scale. I don't think you could do more than reduce or increase a small area by a barely measurable percentage.. at least, not with the power our tech level makes available. Hence why really small wormholes would be more likely at first. Another reason why venting rooms isn't likely to be practical. I mean, you could, but it would take a really long time. (although, tiny wormhole and a high pressure air line would one way of getting fresh air into somewhere that needs it.)

And yeah, Wavicles probably, just virtual ones that don't exist, but everything around them behaves as if they do.

Edited Date: 2022-01-07 01:20 am (UTC)

(no subject)

Date: 2022-01-07 05:26 am (UTC)
kengr: (Default)
From: [personal profile] kengr
Well electric and magnetic forces can be described as distortions of space-time too. Really.

It's just that the equations are *different* for gravity. Don't recall details, it was a long time ago, and involved stuff like tensor calculus.

The late Dr. Robert Forward described a bunch of ways we *could* play with gravity that aren't that far outside the box.

Mostly a matter of engineering problems. Mostly needing to create hyperdense matter and stabilize it. Likely doable, but a major pain.

Check out his book Indistinguishable from Magic

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