Accelerating Future Transhumanism, AI, nanotech, the Singularity, and extinction risk.

Why We Shouldn’t Shy Away from Discussing Risk

"Therefore, if our actions have even the slightest effect on the probability of eventual colonization, this will outweigh their effect on when colonization takes place. For standard utilitarians, priority number one, two, three and four should consequently be to reduce existential risk. The utilitarian imperative “Maximize expected aggregate utility!” can be simplified to the maxim “Minimize existential risk!”." - Nick Bostrom

For reasons, please see the following:

Astronomical Waste by Nick Bostrom
Existential Risks by Nick Bostrom
Cognitive biases potentially affecting judgment of global risks by Eliezer Yudkowsky
Artificial Intelligence and Global Risk by Eliezer Yudkowsky
Immortalist Utilitarianism by Michael Anissimov
What are Existential Risks? by Michael Anissimov

Prominent persons advocating discussion of existential risk:

Martin Rees
Stephen Hawking
Brad Sherman
Most of the transhumanist community