WikiCards · Card list · Science cards · Bekenstein bound
Uncommon card · Science
Bekenstein bound, an Uncommon card
In physics, the Bekenstein bound is an upper limit on the thermodynamic entropy S, or Shannon entropy H, that can be contained within a given finite region of space which has a finite amount of energy, or equivalently, the maximum amount of information that is required to perfectly describe a given physical system…
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 61
- DEF
- 36
- Power
- 97
- Wikipedia reads a year
- 39,000
Power 97 (ATK + DEF): stronger than 40 % of WikiCards cards.
Bekenstein bound quiz: 3 questions
Three questions on the Bekenstein bound card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Which of these cards hits hardest (highest ATK)?
Answer
Bekenstein bound. Bekenstein bound 61 · Electrical cable 57 · Blue hour 51 · Fordite 48 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Wedding anniversary. Wedding anniversary 580,000 · Blue hour 83,000 · Physical chemistry 54,000 · Bekenstein bound 39,000 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- It implies that the information of a physical system, or the information necessary to perfectly describe that system, must be finite if the region of space and the energy are finite.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Bekenstein bound article was read about 39,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 61 and blocks with 36: each hit it takes is cut by 14 %.
How to get Bekenstein bound
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Bekenstein bound in the power ranking, all domains together.
- JanSportUncommon · Society · ATK 55 DEF 42
- An Essay Concerning Human UnderstandingUncommon · Arts · ATK 61 DEF 36
- Mariinskyi PalaceUncommon · History · ATK 55 DEF 42
- Desmond HaynesUncommon · Society · ATK 63 DEF 34
- Electrical cableUncommon · Science · ATK 57 DEF 40
- Jessica Reed KrausUncommon · Arts · ATK 55 DEF 42
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
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- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Bekenstein bound (revision), CC BY-SA 4.0. Photo : Tristanevanslee, CC0, Wikimedia Commons.

