"its not getting any younger....and bike technology has improved and has gone far beyond what the bike is capable of...."

I picked this from another thread in a different sub-forum because it struck me as a foolhardy statement. A fellow is keeping his most favorite bike, and this comment was part of the overall comments in the thread. My 2000 Moto Guzzi is old, yet it goes down the road just fine, does the speed limit and can even do the tonne plus some. What more is needed? My 1979 Raleigh Professional is old, goes down the road perfectly straight, handles like it is on rails, yet comfy for all day long rides. It goes just as fast as it did back in 79 as the engine (me) can go no faster.

I don't get it. What technology can possibly make a bicycle less capable of going down the road?