Rationality and Sustainability

I happened to come across an earlier discussion on this blog as I was talking about "data-driven rationality" and consistency the other day.We looked at Nobel Laureate in Economics Amartya Sen.

He says:

Rationality of choice.. Is primarily a matter of basing our choices - explicitly or by implication - on reasoning we can reflectively sustain if we subject them to critical scrutiny. (p179-180)

That is a much better way to look at things than narrow internal homo economicus consistency. Instead, there ought to be some reflection and an ability to sustain an argument against external argument.