Carl Sagan, the scientist wrote under the pseudonym Mr X. an essay in 1969 for the publication MARIJUANA RECONSIDERED (1971) and published by Dr. Lester Grinspoon of the impact of cannabis and his senses.¿Will it stand the test of time? I’ll let you judge yourself and then let Dr Gus Rosania a PhD in Pharmaceutical Sciences, a real scientist...and a cannabis researcher from the world of the academia…validate it with his comments.Dr Gus Rosania, PhD is the most lauded person I know. Stanford University, BS in Biological Sciences. Harvard University, PhD in Biological and Biomedical Sciences. Fellow, Chemistry, University of California, Berkley. Professor for more than 21 years at the prestigious University of Michigan... where he is recognized for having led the first class on Cannabis at a top accredited and serious university institution.DR. Gus RosaníaIG: rosaniagusLinkedIn: https://www.linkedin.com/in/gus-rosania-025bb926/SOCIAL NETWORKS:• YouTube: @sexolicosincognitospodcast• IG: sexolicos.incognitos• Threads: sexolicos.incognitos• TikTok: sexolicosincognitos• Facebook: Eduardo McCausland• Facebook Group: Sexólicos Incognitos https://www.facebook.com/groups/633427608431665• Correo Electrónico: sexolicos.incognitos@gmail.comFAIR USE ACT -- CREDITOS/CREDITS:MR X. ESSAY | BOOK: MARIHUANA RECONSIDERED Author: Dr. Lester Grinspoon Harvard University Press 1971AUDIOTrack/Musica: 252624.Salsa Loop IntroArtist: Oy MaldonadoLicense: Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/legalcode)Info artist: oymaldonado3@yahoo.com