They may both share some interests in peace. Unitarianism sprang from the Christian Heresy of the Unity of god as opposed to the trinity. (Simpler, more in tune with physics I think). That was 100-300 years ago, now they are probably most discriminated from Extropianism by their Humanist beliefs as opposed to Transhumanism. Nice folks as I have known many, intelligent, liberal thinkers [in the finest tradition of this term]. and also lovers of science (like the Bahai). At the worst, sappy new age-ish feel good tree hugging eco-liberal do nothings !