[ExI] Another very unusual number 1/137

[BillK]

Life as we know it would not exist without this highly unusual number
By Paul Sutter      published 24 March 2022

<https://www.space.com/fine-structure-constant-universe-mystery>

Quotes:
The fine-structure constant is a seemingly random number with no units
or dimensions, which has cropped up in so many places in physics, and
seems to control one of the most fundamental interactions in the
universe.

Its name is the fine-structure constant, and it's a measure of the
strength of the interaction between charged particles and the
electromagnetic force. The current estimate of the fine-structure
constant is 0.007 297 352 5693, with an uncertainty of 11 on the last
two digits. The number is easier to remember by its inverse,
approximately 1/137.

If it had any other value, life as we know it would be impossible. And
yet we have no idea where it comes from.
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Also see: <https://en.wikipedia.org/wiki/Fine-structure_constant>

BillK