Travel Among Stars Will Never Happen !

Porcospino writes:

On 2020-06-22, Whisper wrote:
On 19/06/2020 11:33 pm, Porcospino wrote:
On 2020-06-18, Whisper wrote:

Exactly. Humans aren't equipped for extensive space travel, wouldn't
survive long anyway. That's just sci-fi cartoon stuff.


Humans aren't equipped for diving to the bottom of the ocean, flying in
the stratosphere or walking on the Moon either. Alas, the time when we
were limited to a specific environment and couldn't break out of it is
long past.


You're comparing that to intergalactic travel? Rofl.


Interstellar, not intergalactic. The fact that you treat them as if they
were interchangeable says a lot.

Interstellar travel should be technically feasible for a civilization
with a developed presence in its own system (low-cost launches due to
economies of scale, industrial activities such as asteroid mining,
settlements on more than one planet, solar power satellites, etc.. As
in, there are technical designs for interstellar propulsion that we know
to be realistic for a civilization with that kind of energy and resource
availability.

I don't think the fact that we haven't gone beyond the Moon in fifty
years is significant, because technological development (and economic
growth) of this kind won't happen within decades.

We have SpaceX.

--
Daniel

Visit me at: gopher://gcpp.world

On Thursday, June 18, 2020 at 4:25:57 PM UTC-7, wrote:

It all comes down to Distance = Speed x Time . Do the simple math ! Even at near light speed, which is very unlikely, travel between even close neighbors would take prohibitively long. This is why, although intelligent species that have mastered space travel, likely abound throughout the universe, we are never visited by any.

So tell us, at .999c, how long would it take the crew to travel 8 light-years from their perspective. We know it would take at least a little more than 8 years from the perspective of us here on Earth...

On 19/06/2020 2:58 pm, palsing wrote:
On Thursday, June 18, 2020 at 4:25:57 PM UTC-7, wrote:

It all comes down to Distance = Speed x Time . Do the simple math ! Even at near light speed, which is very unlikely, travel between even close neighbors would take prohibitively long. This is why, although intelligent species that have mastered space travel, likely abound throughout the universe, we are never visited by any.

So tell us, at .999c, how long would it take the crew to travel 8 light-years from their perspective. We know it would take at least a little more than 8 years from the perspective of us here on Earth...



Arriving dead or alive? Imo humans couldn't survive such a journey &
they'd all be dead within weeks.