[excursionist]

> it terrifies me (esp everything going wrong already in our world) that we're not being more critical and cautionary toward life-extension....

Don't worry bro, you'll die and all your fears will go away :). From a personal point of view biological immortality would be great, but I think you're right that there are risks - I can imagine a world where a tiny fraction of wealthy/powerful people make themselves into immortal super-tyrants.