I’d like to point out that Ajeya Cotra’s report was about “transformative AI”, which had a specific definition:
I define “transformative artificial intelligence” (transformative AI or TAI) as “software” (i.e. a computer program or collection of computer programs) that has at least as profound an impact on the world’s trajectory as the Industrial Revolution did. This is adapted from a definition introduced by CEO Holden Karnofsky in a 2016 blog post.
How large is an impact “as profound as the Industrial Revolution”? Roughly speaking, over the course of the Industrial Revolution, the rate of growth in gross world product (GWP) went from about ~0.1% per year before 1700 to ~1% per year after 1850, a tenfold acceleration. By analogy, I think of “transformative AI” as software which causes a tenfold acceleration in the rate of growth of the world economy (assuming that it is used everywhere that it would be economically profitable to use it).
Currently, the world economy is growing at ~2-3% per year, so TAI must bring the growth rate to 20%-30% per year if used everywhere it would be profitable to use. This means that if TAI is developed in year Y, the entire world economy would more than double by year Y + 4. This is a very extreme standard—even 6% annual growth in GWP is outside the bounds of what most economists consider plausible in this century.
My personal belief is that a median timeline of ~2050 for this specific development is still reasonable, and I don’t think the timelines in the Bio Anchors report have been falsified. In fact, my current median timeline for TAI, by this definition, is around 2045.
I’d like to point out that Ajeya Cotra’s report was about “transformative AI”, which had a specific definition:
My personal belief is that a median timeline of ~2050 for this specific development is still reasonable, and I don’t think the timelines in the Bio Anchors report have been falsified. In fact, my current median timeline for TAI, by this definition, is around 2045.