We have the technology
but then says
We need to devise the technology to make that happen
Is that not contradictory? He says "we have the tech" and then he says we have to build it. Surely he is saying the technology we have is what he believes is needed to take us to the stars, we have just not built it into the right configuration yet and it needs more development?
Sort of like how Steve Jobs allegedly left Apple ten years of future invention based on technology that he sees emerging based on current technology and it's development?
according to the quote (from your link to the book) he says we have the 'the tech to take ET home' then he says 'we have to devise new propulsion tech' ....I dont see this as contradictory, but again I would say the actual words would be important and sadly we do not have this at the moment