Starship isn't a proven manned transport vessel yet. And Boom was founded in 2014.

If I was to hazard a guess, the BFS concept is 2035 at the earliest, most likely 2040 -- and it'll be at a much smaller scale than previously advertised.

Do you have any information to base that 2035/2040 prediction on? is there any information to base a negative prediction on?

The phrase "if I were to hazard a guess" should tell you all you need to know. All I did beforehand was update my existing knowledge by reading the Wikipedia article at https://en.wikipedia.org/wiki/SpaceX_Starship#2027_and_beyon...