"It's an equation Jim, but not as we know it!"

Silver (2013) in “The Signal and the Noise” refers to Drake’s equation, which has fascinated me since my teens. It is a formula that provides a framework for predicting the number of intelligent extraterrestrial species in the galaxy. Due to the high number of parameters and uncertainties that make up Drake's equation, Silver describes how the extreme range of results depend on the initial ‘inputs’. Given the variables presented they are estimates. I made a connection to Drake's work through BBC BASIC programming:

'The Nursing Process'
'Computer-Aided Patient Assessment'
'Blood Groups'
'Shades of Grey'

As time went on the simplicity of 'The NP' gave way to DIM arrays, which can provide data structures, and DEF PROC and DEF FN with parameters. 

The evidence for the elements of Drake's equation has made great strides since the 1990s. Despite the remaining uncertainties, Silver notes that Drake's equation has provided a useful lens for astronomers, plus - philosophers and the lay-person to think about life, the universe and everything.

Is there an implicit theory – an equation – in Hodges’ model?

See also: BBC BASIC

Previously: 'Sagan' : 'SETI' ; 'math' : 'Publication list (2024)'

Nate Silver (2013). “The Signal and the Noise”, Notes 89, London: Penguin. p.488.

Title Ack. the original is often misattributed: https://www.youtube.com/watch?v=FCARADb9asE