It is becoming more and more obvious to me that biological beings are just not the best suited to be the beings that colonized the galaxy. We might be an important evolutionary step “but just a step”, as the true inheritors of the galaxy will be sentient machines. After all, who/what is currently doing the initial Mars exploring right now – smart machines.
Sentient machines do and will have FAR fewer restrictions when it comes to planetary environments and long space voyages and many of the things we biological beings need to survive.
Antarctica is far more forgiving and far more potentially rewarding when it comes to extracting resources and profits than Mars, and so far we have yet to "colonize" that continent.
Biological beings are too shaped/trapped by their environments in which they evolved to be “easily” removed from those environments. Even humans, which are the MOST adaptable and the beings that have most transformed their Earthly environments to suit their needs cannot compete with sentient machines. Sentient machines “do not need” to take their earthly environment with them or transform a planet in order to make it more earthlike just to survive, let alone "thrive".
In 200 years, will there be more sentient machines or more humans “thriving” on Mars and the outer planetary moons?
In 2,000 years, will there be more sentient machines or more humans “thriving” on planets outside of our solar system?
Sorry humans but sentient machines are just way better suited to colonize the galaxy. As a matter of fact, just like planet Earth is the perfect environment for biological beings, space and all of those non-Earthlike planets out there just might be the perfect environment for sentient machines.