It’s getting to the point that Musk can’t be believed, no matter what he says.
Maybe he was watching Star Trek last week, and came up with some approach to a warp speed device. But there’s a very big distance between glimmer in his eye and something that can be built – the technology just isn’t there.
Plus he has a reputation for making stories up as he goes along.
I wouldn’t pay much attention to the Ward Bdrive bullshit until there’s soem science behind it that actually works.