Kurzweil's reply of 2011 names Allen's essay and answers it.
One recorded claim. The claim panel gives its qualification, the source passages with their place in each source, and how it was checked.
What it connects
Kurzweil Responds: Don’t Underestimate the Singularity → cites → Paul Allen: The Singularity Isn’t Near
Where it appears
No collection page holds this claim. It is listed with its records in the explorer.