[Hugin]

There are studies that show the more often people use weed, the less it impairs them. It may simply be that people who use more often learn to function better on pot.

[Smokin' Joe]

There are studies that show the more often people use weed, the less it impairs them.

How do you measure impairment with an habitual user? Do you have data before they started using frequently? Before they started using at all?

It's like saying breaking the second leg didn't significantly slow the racehorse.