Daily Archives: May 20, 2016

The rich stay richer and the poor stay poorer (now with data to back this up)

I was impressed by this study of economic mobility over many generations in Florence: What’s your (sur)name? Intergenerational mobility over six centuries | VOX, CEPR’s Policy Portal. They make a good case that the richer families stay richer and the poorer families stay poorer regardless of the many other changes that occur in an area.To add to this, VOX reviews it and also references a study done in Sweden that finds something similar (Today’s rich families in Florence, Italy, were rich 700 years ago – Vox).

It’s depressing, but not surprising to me. I suspect that while individuals may rise and fall in terms of economic mobility, specific families work to insure that the wealth acquired is maintained through marriage and inheritance. Worse, conditions for poorer families are such that they can never acquire enough wealth to move them from the lower percentile to a higher one.

What drives A.I. development? Better data

This article, Datasets Over Algorithms — Space Machine, makes a good point, namely

…perhaps many major AI breakthroughs have actually been constrained by the availability of high-quality training datasets, and not by algorithmic advances.

Looking at this chart they provide illustrates the point:

I’d argue that it isn’t solely datasets that drive A.I. breakthroughs. Better CPUs, improved storage technology, and of course new ideas can also propel A.I. forward. But if you ask me now, I think A.I. in the future will need better data to make big advances.