We're sunsetting PodQuest on 2025-07-28. Thank you for your support!
Export Podcast Subscriptions
cover of episode How Amateurs Solved a Major Computer Science Puzzle

How Amateurs Solved a Major Computer Science Puzzle

2025/7/1
logo of podcast Quanta Science Podcast

Quanta Science Podcast

AI Deep Dive AI Chapters Transcript
People
B
Ben Brubaker
S
Samir Patel
Topics
Ben Brubaker: Busy Beaver 游戏是一个数学难题,它探讨了简单计算机程序可能产生的最奇怪和不可预测的行为。这个游戏吸引了许多非专业的数学或计算机科学研究者,他们纯粹出于对游戏的热爱而参与其中。一年前,一个开放的在线协作团队取得了重大突破,任何人都可以加入这个团队。这个游戏的核心在于寻找运行时间异常长的简单计算机程序,但这些程序最终会停止运行。寻找这些程序的过程迫使我们思考计算机科学中最大的问题之一:如何判断一个给定的计算机程序是否会永远运行或停止运行。在 Busy Beaver 游戏中,我们使用图灵机作为计算机程序的理论模型,这种机器由一条无限长的带子、一个读写头和一系列规则组成。通过调整规则,我们可以探索不同程序的行为,并试图找到运行时间最长的程序。 Samir Patel: 我一直对谜题情有独钟,尤其是那些结构精巧、需要长期思考才能解决的谜题。Busy Beaver 游戏对我来说,就像一个需要耐心和智慧才能解开的数学证明。我欣赏那些能够几十年甚至几代人都在努力解决难题的人,他们从中获得的满足感一定非常强烈。这个游戏的核心在于找到运行时间最长的图灵机程序,这需要我们深入理解计算机程序的本质,并思考停机问题这个计算机科学中的核心挑战。我很高兴能与 Ben Brubaker 一起探讨这个不寻常的智力谜题,并了解业余爱好者如何通过在线协作解决这个难题。

Deep Dive

Shownotes Transcript

The Busy Beaver Challenge, an open online collaboration, started in 2022 to finally solve a major problem in theoretical computer science. Over time, the online community grew to include more than 20 contributors from around the world, most of them without traditional academic credentials. In July 2024, the group announced that they finally solved the puzzle, bringing a conclusion to over 40 years of effort.

On this week’s episode of The Quanta Podcast, computer science staff writer Ben Brubaker explains the tantalizing Busy Beaver puzzle, which he covered in depth last year, in "With Fifth Busy Beaver, Researchers Approach Computation’s Limits.")

Each week on The Quanta Podcast, Quanta Magazine editor in chief Samir Patel speaks with the minds behind the award-winning publication to navigate through some of the most important and mind-expanding questions in science and math.