I think the baseline of comfort that we're aiming for is beyond what most of us in the West have. I think the late Hans Rosling's "level 3" probably isn't much

I think the baseline of comfort that we're aiming for is beyond what most of us in the West have. I think the late Hans Rosling's "level 3" probably isn't much less well off in terms of emotional well-being than level 4. And level 3 is significantly cheaper than level 4, so it's not unimaginable that eventually everyone gets at least there over a few hundred more years.