This Hacker News thread discusses an article about creating fair dice from random objects, prompting varied reactions. Some question the practical use and long-term stability of such dice compared to traditional ones. Several commenters discuss creating fair coins from biased coins, referencing the Von Neumann extractor. This technique involves flipping the coin twice and only accepting results where the outcomes differ (HT or TH), thus achieving a 50/50 probability. Others elaborate on more general methods of extracting entropy from permutations of random draws. Keenan Crane, a highly respected researcher known for effectively communicating complex topics, is mentioned in relation to the article. Some users also touch on the quant interview problem of creating a fair N-sided die from a biased one, using the commutative property of multiplication to achieve fairness.