It does not increase trichomes, thats not what he said.
Cannabinoid Conversion
Naturally,as the metabolic processes continue during curing, the conversion ofcannabergerol to tetrahydrocannabinol will continue and the potency ofthe pot will increase. This is because cannabergerol (CBG) is thenon-psychoactive precursor for tetrahydrocannabinol (THC). Of course,the exact change in THC content will necessarily be dependant upon theconcentration of CBG in the fresh material at harvest. Of course anyremaining precursors necessary to form additional cannabidiol (CBD) andother cannabinoids will also be consumed and converted.
Beaware though if curing is excessively prolonged (most connoisseurswould agree after 6 months no more benefit could be had from curing),the conversion of THC to non-psychoactive cannabinol (CBN) will occur.The exact rate of decomposition can vary widely depending on handlingand storage conditions, but can be less than 10% to greater than 40%decomposition per year.