Bostrom says that a fast takeoff would leave scant time for human deliberation (p64). While it certainly leaves much less time to deliberate than the other scenarios, I can imagine two days allowing substantially more deliberation fifty years hence than it would now. Information aggregation and deliberation technologies could arguably be improved a lot. Automatic but non-agent systems might also be very good by the time human-level agents are feasible.
Bostrom says that a fast takeoff would leave scant time for human deliberation (p64). While it certainly leaves much less time to deliberate than the other scenarios, I can imagine two days allowing substantially more deliberation fifty years hence than it would now. Information aggregation and deliberation technologies could arguably be improved a lot. Automatic but non-agent systems might also be very good by the time human-level agents are feasible.