Are you're rationally taking into account the biasing effect your heartfelt hopes exert on the set of hypotheses raised to your conscious attention as you conspire to save the world?

Recovering, in instances like these, reversed stupidity is not intelligence; you cannot say, "I wish fast takeoff to be possible, therefore it is not".

Indeed. But you can, for example, say "I wish fast takeoff to be possible, so should be less impressed, all else equal, by the number of hypothesis I can think of that happen to support it".

Do you wish fast takeoff to be possible? Aren't then Very Horrid Singularities more likely?

All you can do is try to acquire the domain knowledge and put your mind into forward form.

Yes, but even then the ballot stuffing is still going on beneath your awareness, right? Doesn't that still count as some evidence for caution?