"A 42 engine vehicle with similar individual engine reliability, 84.5%."
(0.845)^42=0.0847% chance of success. 2 flights are necessary. One to send
the capsule to LEO and another to sendo fuel to the ITS to fly to Mars. So,
the chance of the plan going alright is 0.0000717%. That is, if an engine
exploding and take the whole rocket with it.
