TL;DR: Many models of the future exist. Several are relevant. Hyperbolic model is strongest, but too strange.
Our need: correct model of the future
Different people: different models = no communication.
Assumptions:
Model of the future = main driving force of historical process + graphic of changes
Model of the future determines global risks
The map: lists all main future models.
Structure: from fast growth – to slow growth models.
Pfd: http://immortality-roadmap.com/futuremodelseng.pdf
Yes ... (( Ben Goertzel suggested another term: "potentially indefinite life extension". It is almost the same as immortality, but people may feel freedom on ontological level with it.
Nobody wants to be trapped forever in unpleasant conditions, and to become immortal is the first step to such situation )) So we should address this concern.
I wouldn't call cryonics life extension; sounds more like resurrection to me. And, well, "potentially indefinite life extension" after that, sure.