...yes?

Though Keltham would not say that the conclusion you reached is probably wrong?  Maybe you expected to end up persuaded that the Sun would still be lit the next day, that doesn't mean the Sun goes out?  The saying out of dath ilan is 'reversed stupidity is not intelligence': to reliably be wrong about yes-or-no questions 99% of the time you'd need sufficiently good evidence and well-processed information that you could be right 99% of the time just by flipping the answers.  So if you look back and notice you were persuaded of something by garbage reasoning, you undo the update from that, you don't conclude that you now have positive knowledge pointing strongly in the opposite direction.

...yes?

Though Keltham would not say that the conclusion you reached is probably wrong?  Maybe you expected to end up persuaded that the Sun would still be lit the next day, that doesn't mean the Sun goes out?  The saying out of dath ilan is 'reversed stupidity is not intelligence': to reliably be wrong about yes-or-no questions 99% of the time, you'd need sufficiently good evidence and well-processed information that you could be right 99% of the time just by flipping the answers.  So if you look back and notice you were persuaded of something by garbage reasoning, you undo the update from that, you don't conclude that you now have positive knowledge pointing strongly in the opposite direction.

...yes?

Though Keltham would not say that the conclusion you reached is probably wrong?  Maybe you expected to end up persuaded that the Sun would still be lit the next day, that doesn't mean the Sun goes out?  The saying out of dath ilan is 'reversed stupidity is not intelligence': to reliably be wrong about yes-or-no questions 99% of the time, you'd need sufficiently good evidence and well-processed information that you could be right 99% of the time just by flipping the answers.

So if you look back and notice you were persuaded of something by garbage reasoning, you just undo the update from that.  You don't conclude that you now have positive knowledge pointing strongly in the opposite direction.