Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

The Physics That Makes Interstellar Travel IMPOSSIBLE
YouTube ^ | February 6, 2026 | Richard Feynman

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 ...


TOPICS: Astronomy; Science
KEYWORDS: ai; bigfoot; fakevideos; ifhfakescience; interstellartravel; nonsense; relativity; richardfeynman; superluminal; youtube
Message from Jim Robinson:

Dear FRiends,

We need your continuing support to keep FR funded. Your donations are our sole source of funding. No sugar daddies, no advertisers, no paid memberships, no commercial sales, no gimmicks, no tax subsidies. No spam, no pop-ups, no ad trackers.

If you enjoy using FR and agree it's a worthwhile endeavor, please consider making a contribution today:

Click here: to donate by Credit Card

Or here: to donate by PayPal

Or by mail to: Free Republic, LLC - PO Box 9771 - Fresno, CA 93794

Thank you very much and God bless you,

Jim


Navigation: use the links below to view more comments.
first previous 1-20 ... 81-100101-120121-140 ... 201-212 next last
To: Pox

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.


101 posted on 02/19/2026 5:18:47 PM PST by A_perfect_lady (The greatest wealth is to live content with little. -Plato)
[ Post Reply | Private Reply | To 98 | View Replies]

To: rexthecat

That’s AI, not Feynman, and I challenge you to find a reputable reference in which the real Feynman makes those same points.

I’ve seen other similar videos also from “Feynman Analysis” in which “Feynman” mentions space missions that didn’t occur until he’d been dead for 30 years.

You’ve been had.


102 posted on 02/19/2026 5:23:33 PM PST by Paal Gulli
[ Post Reply | Private Reply | To 1 | View Replies]

To: CodeToad

“There was also the same “calculations” for the speed of sound with claims that the speed of sound could not be broken.”

This subject is way above your paygrade.


103 posted on 02/19/2026 5:25:13 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 11 | View Replies]

To: rexthecat

We have an example of one civilization that made it to space so far. Us. Using this one example to extrapolate why other civilizations couldn’t possibly reach us seems flawed. How do we know anyone has the same limitations when it comes to time? What if they live a million years? Or need such meager resources that it’s no problem to breed a million generations during the trip in a goldfish bowl or whatever? For all we know we are the mayflies of the galaxy and everyone else lives eons but have no drive to explore. Seems hard to imagine, but it’s all imagination when it comes to only having an example of one to go by.

FReegards


104 posted on 02/19/2026 5:25:58 PM PST by Ransomed
[ Post Reply | Private Reply | To 1 | View Replies]

To: Telepathic Intruder

“A.I. Feynman doesn’t count. Interstellar travel is absolutely possible, it will just take a long time and require a lot of energy. Decades at least to reach just the nearest stars. Fusion power using an asteroid-sized fuel tank of deuterium could do that, albeit very difficult but not impossible.”

Decades? ROTFLMAO!


105 posted on 02/19/2026 5:28:57 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 18 | View Replies]

To: Alberta's Child

But it could make colonizing the solar system possible. But i still dont think its feasible. Space isn’t empty, hitting some small particle at a million miles an hour.

Then, imagine the slowdown process to where you’re going...


106 posted on 02/19/2026 5:29:08 PM PST by Secret Agent Man (Gone Galt; not averse to Going Bronson.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: rexthecat

Mid-20th century thinking. Feynman was a genius but he still wasn’t immune from his time and place.


107 posted on 02/19/2026 5:30:27 PM PST by eclecticEel ("The petty man forsakes what lies within his power and longs for what lies with Heaven." - Xunzi)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SkyDancer
I guess we need some ship that can reach warp factor nine then.

Warp 9 won't cut it. Warp 10 is what's needed, it represents infinite velocity, where a vessel would exist at all points in the universe simultaneously.

108 posted on 02/19/2026 5:30:51 PM PST by usconservative (When The Ballot Box No Longer Counts, The Ammunition Box Does. (What's In Your Ammo Box?))
[ Post Reply | Private Reply | To 2 | View Replies]

To: rexthecat

And OBTW, I happen to agree with the sentiment in the video.

We’re never getting off this rock.

We might eventually colonize other planets in our solar system but from an energy standpoint even that isn’t (and never will be) cost-effective compared staying put and fixing whatever’s wrong with earth.

With the exception of when our sun expands as it burns out and envelops the planet, but that’s also the end of the solar system, so no one is surviving that.


109 posted on 02/19/2026 5:32:57 PM PST by Paal Gulli
[ Post Reply | Private Reply | To 1 | View Replies]

To: Neanderthal

“I calculate 2,879 years to get there at 1,000,000 mph. Still more time than I have to spare.”

If the instantaneous acceleration didn’t kill you the stop surely would.


110 posted on 02/19/2026 5:33:01 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 45 | View Replies]

To: fso301

“Because evolutionists said life evolved all across the universe”

Because you only read the anti-evolution websites you remain ignorant of what evolutionists really say.


111 posted on 02/19/2026 5:34:32 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 53 | View Replies]

To: usconservative

Guess a rewrite of Star Trek is needed and the Enterprise has to be updated. Calling Scotty to the white phone ....


112 posted on 02/19/2026 5:35:05 PM PST by SkyDancer ( ~ Am Yisrael Chai ~)
[ Post Reply | Private Reply | To 108 | View Replies]

To: Eli Kopter

“Newtonian Laws are only applicable up to the speed of light. “

What does that mean?


113 posted on 02/19/2026 5:35:39 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 51 | View Replies]

To: Slicksadick

“Spooky action at a distance exceeds the speed of light and will be the base for future faster than light endeavors.”

More nonsense from the uninformed.


114 posted on 02/19/2026 5:37:57 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 70 | View Replies]

To: Crusher138
"We have already detected particles that travel at faster than the speed of light."

WRONG

"Quantum physics points towards instantaneous transfer of information regardless of distance."

WRONG

115 posted on 02/19/2026 5:40:36 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 75 | View Replies]

To: usconservative

Yeah, but then we all turn into weird lizard creatures.


116 posted on 02/19/2026 5:41:35 PM PST by Kleon
[ Post Reply | Private Reply | To 108 | View Replies]

To: Dead Corpse

“My guess is that coming up with a way to modify the gravity gradient “

There is no gravity gradient. There is no gravity.


117 posted on 02/19/2026 5:42:02 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 79 | View Replies]

To: rexthecat

interstellar travel is only impossible if you abide by the speed limit. i dont know many people that do that


118 posted on 02/19/2026 5:42:38 PM PST by wafflehouse ("there was a third possibility that we hadn't even counted upon" -Alice's Restaurant Massacree)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Opinionated Blowhard

“The idea that the speed of light is a barrier that is impossible to breach will be overcome some day”

The speed of light is not a barrier. It is a fundamental to the structure of the universe.


119 posted on 02/19/2026 5:44:08 PM PST by TexasGator (1X11111.1~I11:/)
[ Post Reply | Private Reply | To 82 | View Replies]

To: x

Lack of faith.


120 posted on 02/19/2026 5:44:57 PM PST by MIA_eccl1212 (10-10-10-10)
[ Post Reply | Private Reply | To 6 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-20 ... 81-100101-120121-140 ... 201-212 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson