New SETI Data Sources

'myron' in sequence has a low probability of occurring by random chance.

An individual with a PhD in mathematics or a skilled cryptographer should be able to verify my theory of the existence of SETI signals.

See my calculation for a URL:

Technology Nuggets SETI Research Supplemental Material.

https://www.youtube.com/watch?v=pju3oYNRm_4

Reo Speedwagon

Corn fields on campus: Morrow Plots

oYNRm

Each character in a YouTube can be a-z, A-Z, 0 to 9, _, + for a combined set of 64 characters.

My estimate of the chance the 5 letters oYNRm occur contiguously in a YouTube URL:

1/((4/32)*(3/32)*(2/32)*(1/32)) = 1 in 43,690

That 1 in 43,690 chance is a conservative estimate because the finite length of a YouTube URL, on the average 11 characters, and the number of possible starting positions within the URL, which is approximately 6 starting positions is not reflected in the equation. That is, finding an a priori defined string (5 specific contiguous letters in any order) in a finite set of positions is less probable than finding the same string within an infinite length string.

No duplicate letters allowed. A duplicate letter restarts the calculation.

Added August 4, 2020

I did not include the first component (5/32) in the calculation because I wanted a conservative estimate starting by processing downward in the column of letters with the first matched target assumed. That is intended as a conservative estimate ignoring the chance of not matching any URL component within the URL length with place for the remaining letters.

Also, I do not know the letter frequencies used by Google in forming their short YouTube URLs. I have not seen this data published anywhere.

I used a denominator of 32 instead of 64 as an estimate because I was not calculating differences by upper/lower case letters. The 32 includes letters, digits, and relevant symbols. The calculation to 1 in 43,690 I consider a conservative estimate of probability.

darwin4 pdfpage 250.JPG