Sort of, but I believe someone found that the actual risk isn’t so much in the low reaction time or impulse control, it’s in the change between the inebriated person’s usual faculties and what they’re experiencing under the influence of alcohol. Drivers who are used to having a 1-second reaction time are likely to continue driving as if they have a 1-second reaction time even if their actual speed is more like 1.75-second due to alcohol.

You’re not going to get any argument from me that it’s insane we allow anyone to pilot a four-thousand-pound vehicle after only a single one-hour test, and retain that permission indefinitely, though.