All corrections
LessWrong March 13, 2026 at 08:24 PM

www.lesswrong.com/posts/evakCi7A7Yqb3F8qi/the-dream-machine

2 corrections found

1
Claim
Cystic Fibrosis Foundation’s “venture philanthropy” investments that funded the development of the first cystic fibrosis drugs back in the 1990’s.
Correction

This mixes up two different eras of CFF funding. The first CF drugs were approved before the Foundation adopted its venture-philanthropy model in 1998–2000.

Full reasoning

The timeline on the Cystic Fibrosis Foundation’s own site contradicts this.

  • CFF says that by the late 1990s, two important CF drugs had already been approved.
  • It then says that in 1998 Robert Beall “landed on an idea known as venture philanthropy,” and that in 2000 the Foundation made its first large investment under that model with Aurora/Vertex.
  • A separate review article states that dornase alfa (Pulmozyme) was the first drug targeted specifically for CF patients and was FDA approved in 1993.

So the “first cystic fibrosis drugs” of the 1990s were not funded by CFF’s later venture-philanthropy investments. CFF absolutely did support major CF drug development, but the venture-philanthropy program came after those first 1990s approvals and is better associated with later CFTR-modulator breakthroughs such as ivacaftor/Kalydeco.

3 sources
2
Claim
In the early 20th century, they were the sole American provider of telephone service
Correction

AT&T was dominant, but it was not the only U.S. telephone provider. Thousands of independent telephone companies operated in the early 1900s.

Full reasoning

This overstates Bell/AT&T’s market position.

Historical sources show that the Bell System was not the sole U.S. telephone provider in the early 20th century:

  • A National Park Service history of the Bell Telephone Laboratories Building says that after Bell’s patents expired, independent telephone companies proliferated, and by 1904 there were 6,000 independent telephone companies in operation across the United States.
  • AT&T’s own historical materials likewise say that after the 1894 patent expiration, independent competitors sprang up and within a decade there were about 6,000 independent providers.
  • The FCC has also described U.S. local telephone service as being provided by both independent telcos and AT&T’s operating companies for much of the 20th century.

So Bell/AT&T may have been the leading or dominant provider, but calling it the sole American provider is factually incorrect.

3 sources
Model: OPENAI_GPT_5 Prompt: v1.16.0