The scenario you describe seems relevantly different from the one Alicorn described. I completely understand how commitment contracts are helpful, and even though they rely on (or are necessitated by) human cognitive flaws, the sunk cost fallacy is not among them.
In your scenario, at time #10 you’re making the rational decision between wearing the robe today and $100. In a parallel scenario to this one based on what Alicorn did, you instead would pay the $100 ahead of time and then (for some reason) be committed to wearing it 10 times. Now, what decision are you making at time #10 that is similar to the case above?
The scenario you describe seems relevantly different from the one Alicorn described. I completely understand how commitment contracts are helpful, and even though they rely on (or are necessitated by) human cognitive flaws, the sunk cost fallacy is not among them.
In your scenario, at time #10 you’re making the rational decision between wearing the robe today and $100. In a parallel scenario to this one based on what Alicorn did, you instead would pay the $100 ahead of time and then (for some reason) be committed to wearing it 10 times. Now, what decision are you making at time #10 that is similar to the case above?