(May 11, 2019 at 2:25 am)Macoleco Wrote: There is a possibility that we hit the limits of Physics and learn everything there is to know. If that is the case, and within that knowledge we can’t find a way to travel not at the speed of light but beyond that, and an extremely powerful communication system, we are doomed to extinct alone.
The only possibility would be if another intelligent species have access to something we don’t or if the multi universe theory is correct, and someone from a different universe contact us which is extremely unlikely
Not quite true.
As noted by Sir Niven and Pournel even with out 'FTL' the one big limiter to travelling between stars is simply 'Time'.
With the heavy engineering of the 60's it's possible to build a multi-million ton vessel that can reach about 0.05 the speed of light.
This puts a trip to our nearest neighboring star at about 80 years.
For any passengers there's the possibilty of 'sleeping' through long parts of the trip.
However, another way to solve or aleviate the amount of time involved in such a 'Slow ship' would be 'Angagethics' or other mthods to reduce or even possibly halt aging in Humnas.
People with a life span in the multiple hundreds of years (Stretched even further by hybernation) could easily make trips between resonably close neighboring stellar stytems. With multiple generations lowly expanding the sphere of esploration over time.
Of course, computer/robotic probes aren't going to age or get bored and so their distance of travel would be een further.
Cheers.
Not at work.
