The value that designer arylcyclohexylamines (3-MeO-PCP, 4-HO-PCP, 3-MeO-PCE, 4-HO-PCE, O-PCE, deschloroketamine, and 2F-deschloroketamine) have added to my life is immeasurable in terms of challenging my preconceptions on reality, the reliability of my senses, and the possibilities of my mind.<p>Tryptamines, phenethylamines, and lysergamides, on the other hand, do very little for me, even at extremely high doses.