People

• Nob Yoshigahara03:05Box introduces Nob Yoshigahara as the puzzle inventor behind the number-tree puzzle he asks the audience to solve.
• Alex Bellos06:21Box says he took the number-tree puzzle from a book by Alex Bellos, the Guardian's maths correspondent.
• James Burke14:58Box quotes James Burke saying that people abhor complexity and seek to simplify it by developing explanatory theories.
• Charles Sanders Peirce18:30Box presents Charles Sanders Peirce as interested in how people acquire completely new ideas and in anomalies that do not fit existing patterns.
• Roger Martin20:24Box names Roger Martin as one of two people whose writing on this topic has resonated with him.

Concepts

• Deductive reasoning06:58Box defines deductive reasoning as top-down logic that starts with a premise and reasons within its constraints to a logical conclusion.
• Inductive reasoning12:35Box describes inductive reasoning as bottom-up reasoning that starts with an observation and extrapolates to a theory or model.
• Usability testing13:47Box gives usability testing as a UX activity used alongside stakeholder interviews to understand project objectives.
• Abductive reasoning20:08Box calls abductive reasoning an imaginative third form of reasoning through which new ideas emerge and asks what could possibly be true.

Projects and resources

• The Design Squiggle08:22Box uses the design squiggle to represent a messy design state becoming a clear, untangled line.

Papers and articles

• Abductive Thinking and Sensemaking: The Drivers of Design Synthesis20:24Box names Jon Kolko and then describes design synthesis as an abductive sense-making process that produces new knowledge.

Books

• The Design Method21:22Box cites Sydney Gregory's book The Design Method when distinguishing the scientific method from the design method.
• The Design Way22:41Box cites Harold Nelson and Erik Stolterman's book The Design Way while arguing that inventions are often labelled as discoveries.