Richard Feynman tried them out several times and had really interesting experiences. See https://www.dmt-nexus.me/forum/default.aspx?g=posts&t=51786 https://www

Richard Feynman tried them out several times and had really interesting experiences. See https://www.dmt-nexus.me/forum/default.aspx?g=posts&t=51786 https://www.dmt-nexus.me/forum/default.aspx?g=posts&t=51786 for his description.