Nathan is a licensed psychotherapist and co-host of Altered States of Context, a podcast about psychedelics, science and psychotherapy. In addition, he serves as president of the board for the Illinois Psychedelic Society and is a board advisor for Entheo Il, a group dedicated to the successful passage of Illinois HB1, the Compassionate Use and Research of Entheogens act. He also practices regenerative ranching and writes from his family's farm in rural west-central Illinois. He is a frequent guest and guest host for the Doomer Optimism podcast, a collective podcast dedicated to promotive creative and humane ways to engage with our social and environmental problems with creativity, hope, and good stewardship.

Dr. Brian Pilecki is a clinical psychologist at the Portland Psychotherapy Clinic that specializes in the treatment of anxiety disorders (OCD, generalized anxiety, social anxiety, panic disorder), trauma and PTSD, and matters related to the use of psychedelics. He completed a post-doctoral fellowship at The Warren Alpert Medical School of Brown University and practices from an orientation based in Acceptance and Commitment Therapy (ACT). Brian also has extensive experience in the areas of mindfulness and meditation, and incorporates them into his therapy with clients. He is an active researcher and has published on topics such as anxiety disorders, mindfulness, and the relationship between theory and practice in psychotherapy. At Portland Psychotherapy, Brian is also involved in research in the use of psychedelics for the treatment of mental health problems.