[Delta 21]

But thats about as good as we can get.

How fast can we make things go? and what if we run into a speck of dust at that speed.

4 lightyears away only takes 4 years if you are going light speed. Very steep curve on the ‘time’ axis.

[DungeonMaster]

But thats about as good as we can get.

I'd be really impressed if we actually made something go that fast. Look at the last 35 years of space travel advancement compared to computer tech. Space tech is at a stand still.

How fast can we make things go? and what if we run into a speck of dust at that speed.

A speck at that speed would be really noisy, in the vacuum of space that is.