Despite this (and SpaceX seems to be the company of his that he is least involved in on a day to day basis) he has made many documented false promises. Playing with rockets shouldn’t excuse that https://elonmusk.today/
SpaceX was the company he was most involved, and still is pretty involved. Just watch any factory tour he made, be it the 2005 ones or the new Texas ones. Or hear what people who worked with him talk.
And I can't trust that site. An example:
3,129 days since Elon Musk said Teslas would have 1,000 kilometer (621 mile) range within a year or two. (9/23/2015)
"My guess is probably we could break 1,000 kilometers within a year or two. I'd say 2017 for sure."
An altered quote taken out of context. Here what he actually said from the interview[1]:
Q: When will we break the 1000km range mark for an electric car?
M: A thousand kilometers, hmm. Well, it depends under what circumstances for a thousand kilometers. As it is, the record right now for Model S is 800 km. That is the furthest that anyone has driven a Model S...
Q: So we could be close?
M: Yeah, we're pretty close. Now, in order to do that they did drive at a relatively slow speed. So, you know, we're taking, I think they drove maybe at 40 or 50 km/h or something like that. But I think, my guess is probably we could break a 1000km within... a year or two?
Q: Okay, so within 2016 maybe even?
M: I say if you say 2017 I'd say 2017 for sure.
