Big deal. We can never even hope to reach the planets of the nearest star from our sun. What a waste of time to spend on totally useless things. 2020 AD
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Big deal. We can never even hope to reach the shores of the land across the sea from our county. What a waste of time to spend on totally useless things. 1400 AD
Big deal. We can never even hope to reach the land across the other side of our county. What a waste of time to spend on totally useless things. 1700 AD
Any travel which can be accomplished during one adult life span is feasible. Any travel requiring multiple human generations bred inside a space capsule...FUHGETT BOUT IT. I am guessing you never helped deliver your children in a hospital.