tom riess wrote: > Significant others and sometimes PD'ers themselves will notice > that while driving, when they see the car in front of them begin to > slow down they will very rationally and appropriately apply the > brakes. This very normal braking maneuver lasts throughout the > braking episode until one reaches approximately the last 5% of the > braking cycle, i.e. just prior to coming to a complete stop. At > this point the driver suddenly finds himself prematurely on top of > the car in front of him . . . I recall reading somewhere that for PWP the ability to estimate time, that is, one's internal clock, is off. I wonder whether this has anything to do with finding oneself pematurely against the car in front. I don't recall whether our estimates are high or low - does anyone have any info on this? But iF it turns out that we estimate that it will take longer to reach a point than the actual time needed, then we will find ourselves there too early. Just speculating ... Phil Tompkins