[krainboltgreene]

Sailboats are luxury items, dude. People aren't forced to use sailboats. In fact, instead of 100% of ships being sailboats, I'd gander only 5% or less are sailboats.

[swombat]

5% of the sailboat market is pretty significant - as is 5% of the computer market. In fact, iirc, Apple has been making solid profits from round about 5% of the laptop market.

Anyway, I was merely illustrating that "the future of" does not mean "the sole replacement of".

[krainboltgreene]

And my counter point was that both your Opera/Theater and Sailboat analogy prove his point.

Motor/Steam boats are now used where Sailboats were used, 100% of the time.

TV/Movies have replaced Opera/Theater for mainstream entertainment.