Wednesday, February 13, 2013

Randomness: Rules for computing classical probabilities might depend on quantum randomness | Synopsis

Randomness: Rules for computing classical probabilities might depend on quantum randomness

Nassim Nicholas Taleb painted portrait -
Nassim Nicholas Taleb painted portrait - "black swan theory" _DDC0525 by Abode of Chaos
License (according to Flickr): Attribution License
Excerpt:

For all the deference to “laws” of nature that supposedly govern everything that happens, the truth is that randomness rules the world. Everywhere you look, randomness is at work, in all the processes described by the mathematics of probability. The temperature of the air and the capriciousness of the weather all depend on random collisions of molecules. Computers operate on the principles of information theory, which is rooted in quantifying probabilities. Time rushes onward and disorder replaces order by virtue of the probabilistic second law of thermodynamics. Randomness determines everything from who gets real medicine in clinical trials to which team gets the ball first at football games. Yet despite its pervasive importance, randomness has always remained rather mysterious. It’s not easy to define, and nobody has ever articulated very clearly exactly where randomness comes from — at least not to every scientist’s satisfaction.

People:

Andreas Albrecht

Overall Sentiment: -0.0798521

Relevance: 0.889286

SentimentQuote
0.157275“We have a plausibility argument that the outcome of a coin flip is truly a quantum measurement,” write Albrecht ...
0.110097“We have a plausibility argument that the outcome of a coin flip is truly a quantum measurement,” write Albrecht and Phillips, of the University of California, Davis. “The 50-50 outcome of a coin toss may in principle be derived from quantum physics … with no reference to classical notions of how we must ‘quantify our ignorance.’”
Sentiment Stats:
  • Number of Quotes: 2
  • Aggregate Sentiment: 0.267372
  • Mean: 0.133686
  • Standard Deviation: 1.7320508075689

Daniel Phillips

Overall Sentiment: 0.0324937

Relevance: 0.463681

SentimentQuote
0.187099“Our claim is that probabilities are only proven and reliable tools if they have clear values determined from the quantum state,” Albrecht and Phillips write. ...
Sentiment Stats:
  • Number of Quotes: 1
  • Aggregate Sentiment: 0.187099
  • Mean: 0.187099
  • Standard Deviation: 1.4142135623731

Davis

Overall Sentiment: 0.0831565

Relevance: 0.286195

Disambiguation: Politician | Governor | MilitaryPerson | PoliticalAppointer | FilmActorReferences:

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  • The Mean is meant to be an indicator of an individual's average comment sentiment.
  • The Standard Deviation, when there are enough quotes, will indicate an individual's consistency of sentiment (i.e. a Standard Deviation of 0 would mean they were very consistent in their sentiment and 1 would mean they were very inconsistent).

Note that quote stats are likely to be meaningless beyond the aggregate score due to the tiny sample size. However, they are always provided just in case you find something useful there.

Additional Info:

Sport: football

Overall Sentiment: 0.17278

Relevance: 0.422362

Disambiguation: AwardDisciplineReferences:

City: Lincoln

Overall Sentiment: -0.0580179

Relevance: 0.325043

Company: quantum

Overall Sentiment: 0.109726

Relevance: 0.621634

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