The scale at which we've traveled has also advanced with our technology, and the technology has also advanced with it - and it's increase with a pace that matches the overall progress of technology.
Columbus took 5 weeks to travel across the Atlantic with zero actual idea how long it would take.
The longest journey at sea without stops has been roughly 3 years.
We have people out on the ISS for 6m - 1y at a time.
Who knows how long it'll take for us to get to that point, but if we can survive the great filter, it's not unreasonable to think it'll take less than 1000 years to get to Mars based on the current trajectory. Probably a lot less.
Columbus took 5 weeks to travel across the Atlantic with zero actual idea how long it would take.
The longest journey at sea without stops has been roughly 3 years.
We have people out on the ISS for 6m - 1y at a time.
Who knows how long it'll take for us to get to that point, but if we can survive the great filter, it's not unreasonable to think it'll take less than 1000 years to get to Mars based on the current trajectory. Probably a lot less.