Posted on 02/19/2026 1:56:56 PM PST by rexthecat
Richard Feynman’s physics reveals why aliens cannot reach Earth. From the absolute limit of the Speed of Light to the Fermi Paradox, discover why Interstellar Travel is impossible and why we are truly alone in the universe. …
(Excerpt) Read more at youtube.com ...
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I guess the science is settled then.....until someone invents the Mannschen Drive.
AI run amok
Often an extra 5 minutes near the end repeating with slight linguistic changes.
I/we,
Survived Web 2.0,
Survived 5g,
Buckle up for ai.
It's rarely original verbatim content.
In_My_NEVER_HUMBLE_Opinion :-)
Um... yes...
“provide optimizations for the
Alcubierre metric that decrease the negative energy requirements by two orders of
magnitude”
2 orders of magnitude less of something that doesn’t exist is meaningless.
...and manage not to collide with any debris along the way...
GR literally describes it... I have a Ouija board if you want to argue with Einstein.
Right now, we have a sample size of 1. We have loose theories and a handful of observations that most folks can’t agree on.
The one guy to take a stab at a starting point for an equation shows that yeah... just using our solar system and planet as a starting point... We are mathematically not alone in the Universe.
Well, we're going to have to go somewhere if we want to survive as a species.
There will come a time due to climate change (not the man-made BS but *real* climate change caused by the expansion of the sun) when the Earth will no longer be hospitable to life. We'll be a hot Mars, dry and desolate.
Granted, that'll be a billion years from now but time flies!
My answer to that is time dilation. If you can achieve a high enough fraction of the speed of light, the onboard reactor really isn’t running for that long in its frame of reference.
In my opinion, we should be putting a lot more research into manipulation of the Casimir effect. What we really need is a propulsionless drive; some way to continually push against the vacuum until achieving a high enough fraction of the speed of light that time dilation mitigates the need for living on the ship for millennia.
ne is something JWST and other scopes are still working on, but we seem to be finding more than a few than originally anticipated in this region.
fl, fi, and fc are all non-zero numbers just because WE exist.
L is kind of a weird one. It's taken us 250k years for biologically modern humans to get to this point... assuming this is our first real civilization and that any previous rise wasn't erased by catastrophe/glaciation.
Figure there are roughly 1024, a septillion for those keeping count of zeros, stars in the Universe...
Yeah... I'm ok with going with the mathematical "certainty".
Gah. I meant propellantless drive. Words are hard.
We are mathematically not alone in the universe - well, okay, if one uses numbers pulled out of one’s hindquarters.
I have no idea how many grains of sand exist on all the beaches and under all the tide waters on earth - I’m guessing it’s a pretty big number. Maybe I’ll ask Grok. It’s possible that one of those grains of sand, within certain mathematical constraints, resembles a bust of Elvis. But I have no idea what the odds of that happening are, so I have no idea if that’s likely to be the case or not.
We do know life exists on earth. We have no mathematical evidence that it’s exists anywhere else. Nor for that matter evidence of any kind. Even though it’s certainly possible that there are gazillions of star systems harboring living creatures. But without physical evidence or knowledge of the odds of life appearing, belief in extraterrestrial life at this point is just that - a matter of belief, not a known physical reality or an extrapolated mathematical fact.
We’re always fascinated (myself included) by Alpha Centauri because it’s the closest system and has two sun-like stars. However, it’s actually not the best candidate for finding planets in stable orbits since aCen A and B will disrupt anything with too large an orbit. We absolutely should point our telescopes at it since, it being so close, we can potentially learn a lot but if I was to look for a habitable world I’d look very closely at Tau Ceti. It’s only a single Sun-like star with the right age and no companion to disrupt planetary orbits.
A lot of folks are attracted to the Drake equation because it’s an *equation* - that gives it the patina of mathematical truth.
The problem is filling in the details, which can gloss over actual physical truth.
In particular, my gripe is with the term below:
fl = the fraction of planets that could support life that actually develop life at some point.
In particular, it’s the end of that explanation that’s troubling - it *assumes* the development of life, as if that was an automatic given, and focuses numerically on something else - whether life could be supported. I could drop by and leave some bacteria, and that factor wuold have some relevance, but unless we have some idea how the molecules of life actually evolve, we don’t know if there would be “life that actually develop(s) at some point”.
A Drake equation of some relevance would have to have a factor that treats that consideration - how likely is life to develop on a given planet. One cannot just assume that occurrence as part of a presentation of a separate factor.
The Holy Spirit is not human. It manifested on earth in the in_dwelling sense over 1900 years ago. I wonder why folks avoid discussing that type of “interstellar” travel...beats my mind
After achieving relativistic speeds ... you still have to decelerate ...
I think this sort of discussion is valuable. I also think we’re nowhere near having the technology to do any sort of interstellar travel. Going to the Moon is an already solved engineering problem. Going to Mars is an engineering problem yet to be solved. Going to another star is a science problem.
Quote-It will make Space a very profitable opportunity instead of the money pit it is now. Another good reason is the preservation of Civilization itself. With people spread out all over the Solar System it becomes very difficult for humanity to destroy itself._____
___________________
Thx. We need to figure out how to coexist on earth and solve basic issues before dreaming of miraculously spreading out all over the Solar System. Sounds good on paper though_____
Quote-To me, the biggest problem is this: no matter where we go, there we are. Why leave Earth? We won’t leave our problems behind. We ARE the problem, most of the time.
_________________________
Good point. We would export our conflicts to the moon etc.....lol
The fallen human race ... blessed with billions of brain neurons
Quote-Worse...the Hebrew word that is translated to “Earth” (Ha-aretz) actually means “the land” and is often used as a synonym for Israel.____
The land ..eretz is also used as a symbol for the elect in Christ. Hope nobody gets upset with that though___
Quote-I also think we’re nowhere near having the technology to do any sort of interstellar travel. Going to the Moon is an already solved engineering problem. Going to Mars is an engineering problem yet to be solved. Going to another star is a science problem._______________
I’m wishing on a star...
Nice song__
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