Share Email Print
cover

Proceedings Paper

L factor: hope and fear in the search for extraterrestrial intelligence
Author(s): Charles T. Rubin
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The L factor in the Drake equation is widely understood to account for most of the variance in estimates of the number of extraterrestrial intelligences that might be contacted by the search for extraterrestrial intelligence (SETI). It is also among the hardest to quantify. An examination of discussions of the L factor in the popular and technical SETI literature suggests that attempts to estimate L involve a variety of potentially conflicting assumptions about civilizational lifespan that reflect hopes and fears about the human future.

Paper Details

Date Published: 3 August 2001
PDF: 10 pages
Proc. SPIE 4273, The Search for Extraterrestrial Intelligence (SETI) in the Optical Spectrum III, (3 August 2001); doi: 10.1117/12.435379
Show Author Affiliations
Charles T. Rubin, Duquesne Univ. (United States)


Published in SPIE Proceedings Vol. 4273:
The Search for Extraterrestrial Intelligence (SETI) in the Optical Spectrum III
Stuart A. Kingsley; Ragbir Bhathal, Editor(s)

© SPIE. Terms of Use
Back to Top