Definitely enough to warrant further investigation
.
Infinite, I don't think it's set closed-mindedness, he simply may have misunderstood what exactly the process is that makes this thing work. We're implying hydrolysis powers the car (and so is the news which isn't exactly a haven for good science), who;e JSB has stated another possible way that it would work that offsets the loss of hydrolysis.
Anyway, I agree that it's important to be open-minded about these things; I just saw it as an insult as what ThoughtAddict said sounded like solid science and it just sounded like you were shutting him down with "Well believe whatever you want", which just seems apathetic to me and unwilling to be open to learning how stuff actually works.
But it seems I was wrong, so carry on
