One advantage to a thought experiment is that it can be scaled without cost. Instead of your sorites series, let us posit a huge number of conscious humans. We alter each human to correspond to a single step in your gradual change over time, so that we wind up performing in parallel what you posit as a series of steps. Line our subjects in “stage of alteration” order.
Now the conclusion of your series of steps corresponds to the state of the last subject in our lineup. Is this subject’s consciousness the same as at start? If we assume yes, then we have assumed our conclusion, and the argument assumes its conclusions.
If we assume for sake of argument the subject’s consciousness at the end of our lineup differs from the start of the lineup, then we can walk along the line and locate where we first begin to notice a change. This might vary with groups of subjects, but we can certainly then find a mean for where the change may start. This is possible even if in series we cannot perceive a difference between the subject from one step to another.
One advantage to a thought experiment is that it can be scaled without cost. Instead of your sorites series, let us posit a huge number of conscious humans. We alter each human to correspond to a single step in your gradual change over time, so that we wind up performing in parallel what you posit as a series of steps. Line our subjects in “stage of alteration” order.
Now the conclusion of your series of steps corresponds to the state of the last subject in our lineup. Is this subject’s consciousness the same as at start? If we assume yes, then we have assumed our conclusion, and the argument assumes its conclusions.
If we assume for sake of argument the subject’s consciousness at the end of our lineup differs from the start of the lineup, then we can walk along the line and locate where we first begin to notice a change. This might vary with groups of subjects, but we can certainly then find a mean for where the change may start. This is possible even if in series we cannot perceive a difference between the subject from one step to another.