reward function

Stephen Wolfram gives a 13-minute tour of the Wolfram Language, a symbolic, functional programming language with a built-in knowledgebase. He demos querying large datasets, interactivity and deployment.

A Dyalog demonstration of developing a Sudoku solver in APL, using an algorithm by Arthur Whitney with performance work by John Scholes. The narration steps through the array-oriented solution.

A short demo of the Lenovo ThinkPad X1 Carbon's adaptive keyboard row, which changes its keys based on the user's activity.

Linus Akesson demonstrates the Commodordion, a fully functional 8-bit accordion built around Commodore 64 hardware with bellows made of floppy disks. He performs Scott Joplin's Maple Leaf Rag and tells the story of the build.

A BBC Earth clip from Inside the Animal Mind in which a crow named 007 solves an eight-step puzzle to get a reward. It showcases crow problem-solving.

A short unscripted demo of writing FizzBuzz in JavaScript with a generator function on a steno keyboard, typos included. It gives a feel for what real coding in stenography looks like.

Excerpts from W. Edwards Deming's Red Bead Experiment, where workers draw beads from a bowl and are judged on red ones that are largely down to chance. It shows how system variation, not individual effort, drives results.

A five-minute demo of the Common Lisp debugger fixing a bug, recompiling a single function, and resuming execution from the failed stack frame. It shows how to avoid re-running long computations.

Primatologist Frans de Waal shows an experiment in which capuchin monkeys refuse a reward after seeing a partner get a better one for the same task. It illustrates a sense of fairness in primates.

A one-minute clip from Frans de Waal's TED talk showing two capuchin monkeys given unequal rewards (cucumber versus grape) for the same task. The monkey receiving the lesser reward reacts with protest.

A short demonstration of a crow using a purpose-built vending machine, in which the bird exchanges objects for rewards. The creator sells the machine as a kit.

A Computer History Museum recording of the final demonstration of the Xerox Star, the early graphical user interface workstation. It is a long demo session that shows the design thinking behind desktop, icons and windows.