Lil' Lady (Afghan Kush Ryder) at five weeks. Estimate gram per watt (24 hours) in eleven weeks. Could do better - yellowing/spotting due to initial pH error and heat/light stress. (Pound per plant is a realistic goal from autoflowering cannabis.)
It's no different than tomatoes that ripen off the vine or bright, orange carrots. Just a trait that's desirable in certain applications. In practice, need to get them as big as possible before they automatically flower. An interesting challenge.
Despite being such an important cash crop, prohibition (and possibly being stoned) has slowed basic, selective breeding for cannabis. Following link above, impression is that some is already known but more is to be learned about manipulating ratios of cannabinoids. Can't be a bad thing.
Truer words have never been spoken, but a tight, sticky nug is better than nothing. (Don't know whether to get high(er) or masturbate.)