— _ invented in 1800-1850
Epstein Suite indexes the text; the original document lives at its official source. We don't host the original file — view it on the official release to read it in full.
View the original on the official releaseDocument text
Text is machine OCR and may contain errors. Confirm against the original source above.
Figure S16
A 100%
75%
Median frequency
(% of peak value)
8
25%
— _ invented in 1800-1850
— _ invented in 1850-1900
1
o%
0 25 50 75 100
Years since invention
Gy 1800-1840 Hy: 1880-1920 (ass)
Number of inventions
6
5
4
3
2
1
0
1
i)
800 1850 1900 1950 2000 1800 1850 1900 1950 2000
Year of peak
800 1850 1900 1950 2000
Fig. $16. Controls. (A) We observe over the same timespan (100 years) two cohorts invented at different
times. Again, the more recent cohort reaches 25% of its peak faster. (B) We verify that inventions have
already reached their peak. We calculate the peak of each invention, and plot the distribution of these
peaks as a function of year, grouping them along the same cohorts as used in the text. In each case, the
distribution falls within the bounds of the period observed (1800-2000).
HOUSE_OVERSIGHT_017055
Have a question about what this document contains?
Ask the documents