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Continuity of progress

Historic trends in bridge span length

We measure eight discontinuities of over ten years in the history of longest bridge spans, four of them of over one hundred years, five of them robust as to slight changes in trend extrapolation. The

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Continuity of progress

Historic trends in light intensity

Maximum light intensity of artificial light sources has discontinuously increased once that we know of: argon flashes represented roughly 1000 years of progress at past rates. Annual growth in light intensity increased from an average

Continuity of progress

Historic trends in slow light technology

Published Feb 7 2020 Group index of light appears to have seen discontinuities of 22 years in 1995 from Coherent Population Trapping (CPT) and 37 years in 1999 from EIT (condensate). Pulse delay of light

Continuity of progress

Penicillin and historic syphilis trends

Penicillin did not precipitate a discontinuity of more than ten years in deaths from syphilis in the US. Nor were there other discontinuities in that trend between 1916 and 2015. The number of syphilis cases

Continuity of progress

Historic trends in ship size

This page may be out-of-date. Visit the updated version of this page on our wiki. Trends for ship tonnage (builder’s old measurement) and ship displacement for Royal Navy first rate line-of-battle ships saw eleven and

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Continuity of progress

Historic trends in transatlantic passenger travel

The speed of human travel across the Atlantic Ocean has seen at least seven discontinuities of more than ten years’ progress at past rates, two of which represented more than one hundred years’ progress at

Historical Continuity of Progress

Methodology for discontinuous progress investigation

AI Impacts’ discontinuous progress investigation was conducted according to methodology outlined on this page. Details Contributions to the discontinuous progress investigation were made over at least 2015-2019, by a number of different people, and methods

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Continuity of progress

Historic trends in particle accelerator performance

Published Feb 7 2020 None of particle energy, center-of-mass energy nor Lorentz factor achievable by particle accelerators appears to have undergone a discontinuity of more than ten years of progress at previous rates. Details This

AI Timelines

Historical economic growth trends

An analysis of historical growth supports the possibility of radical increases in growth rate. Naive extrapolation of long-term trends would suggest massive increases in growth rate over the coming century, although growth over the last