Crap maths on my part mate, I don't need it for computing, I'm in the pub on my fourth beer
The Lorentz Fitzgerald equations provide the limits as I know you know.
As v/c approaches 1 and the Sqrt of 1 - almost 1 approaches 0 then as c is a constant m will increase as long as energy e is being put into the system.
I should have put a ? after the v > c => m > infinty
In english for everyone else if the current velocity is greater than the speed of light then it is implied that m would be greater than infinity or more accuratly indeterminate.
The joke was about the 3 years, as the closest place is 4 years away at instantaneous acceleration to lightspeed.
EE Doc Smith Lensman series, the intertialess drive, but he still thought he could get round the c limit
Jim