What is the most realistic prospect for human space colonization?

en.wikipedia.org/wiki/Inverse-square_law

the energy and focus needed to transmit across light years and still be readable, would be prohibitive.

Which is why SETI is such a waste of time.

Which is *one reason why* SETI is such a waste of time.

The inverse square law cannot be denied, but patience and statistics can overcome it.

There is a term I don't know which describes the ratio of data to noise in a signal. You would think that it wouldn't take much noise to make a signal indecipherable, but if you're willing to cut the bandwidth in half, you can nearly double your signal strength using the power of statistics. Even when a signal is overwhelmingly composed of noise, it doesn't matter, so long as enough attempts are made to statistically determine whether what's being received can be separated from random chance. Communications satellites manage to handle a mind-boggling 30:1 noise-to-data ratio. That means that while it has only a slim chance of correctly receiving a 1 or a 0 that is sent to it, by making repeated attempts and analyzing the data using statistics, it is able to detect a bias and interpret this bias as the data being sent.

So yes, it would be very hard to get a signal from Alpha Centauri to Earth. But if your message is very simple, perhaps even binary, and if you send it as loud as you can manage, and if the ears on Earth listen as well as they can manage, and crucially, if they both keep trying over and over for a very long time, the message *will* get through. Statistics will separate the data from the noise.

practicing large-scale engineering, mining, and extreme biological/climate colonization techniques in the ocean and inner earth first

we could start by cleaning our filth up and finding a way to utilize deep water hydraulics and mass geothermal energy, perhaps learning more about xenobiology considering theres shit down there that may not want to be discovered, having limited all of our activites to the upper area of the earth's crust getting deeper than that would allow for all sorts of new geologic discoveries and mining research

such a project would allow for increased real estate and generate more jobs than the space race could ever dream to

will probably never happen because we have some of the weakest governments on earth rn and capitalism is currently committed to keeping the bovine masses fat and multiplying

if we can't colonize the ocean we probably can't colonize space, and will die on this rock

space is infinitely easier to build and live in, compared to the sea floor.

the Dutch have already colonized the sea, did I imply the mariana trench? Pick up an oceanography book user

>space is infinitely easier to build and live in

which is why BP and Exxon built giant platforms on the Moon that house hundreds of works to gather petroleum

Digital humans can travel through space without any of the needs of biological humans, time, water and food do not matter, only energy, which is abundant.

So basically except replace SOMA brains and AIs with robots that simulate the human genome.

REAL TALK

yo im pretty sure that civilizations that are hella more advanced than us don't even fuck with biodomes and bubbles and shit.

I feel like once a civilization has got nuclear fusion down hella good they have usable access to such an immense amount more energy that it can be used to artificially heat the atmosphere. The fuel for fusion is fucking ocean water so that shit will last a while. This assumes we also have developed large scale technologies that can control or at least mild the climate of the planet as well.
But if we got that shit down then all this depends ion is if they get some way to move their whole planet or not.
Rockets wont work on this scale so they probably gotta use some sort of gravitational towing. Try to calculate the trajectories of their own planet and shit. To do this all we gotta do is land hella rockets on a bunch of big ass asteroids and jus control them to pull earth away from the sun. We also can use the asteroids as more distant moons to deflect and warp the trajectory of asteroids that might fuck us up. Ok so now we are away from the sun and no shit is gonna fuck us up. Our whole planet is here and our civilization doesn't have to start over.

Space costs more to get to.

>costs more to get to

and?

logistics is 99% of your costs, a colony that is right off the coast to a few hundred kilometers offshore is a project on a exponentially cheaper and more secure scale than say, the moon which is ~400 000 km and a gravity barrier away, and has way less resources than our ocean, which you would then have to shoot that distance back: we have still yet to build and land a return rocket capable of returning anything more than a few astronauts and a tiny payload of moon pebbles

sea floor has huge pressures, corrosive environment, earthquakes, currents, barnacles, etc

Looking for SNR, Signal to Noise Ratio.

The SNR depends on the power of the source, as well as the power of the noise. It also depends on the methods of communications. FM is wayyyyy better than AM wrt noise. And digital communications, such as FSK or PSK are even better. So, yes, power is a limitation, but maybe new communication systems will come to life and enhance spatial communications