Quantum mechanics

Randomness
We know mathematically what randomness isn't, we don't know what it is: randomness doesn't exist, only indeterminism. Entropy and randomness are used interchangeably and even dissimilarly for indeterminism. A high concentrate of energy on the one end of a heated metal bar dispersing this heat uniformly throughout the rod as it cools is high entropy to low entropy conversion. Usually this involves intelligent design(ID) but can also occur naturally. The high,low entropic state of a system is the concentrate of energy clustering in section of such system(high) or the dispersion of such energy through the system(low entropy).

With coin flipping we can in fact determine if it will be heads or tails, if we knew all the variables such as angle, air pressure, mass etc involved. Hence "random" heads or tails is used as a dissimilar term for indetermined, such is the nature of our volitionalistic language.

Quantamagazine
https://www.quantamagazine.org/a-unified-theory-of-randomness-20160802/

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Encryption

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