Posting Puzzle is a browser-based game where players match envelopes and stamps by solving instances of Post's Correspondence Problem, a classic computational problem named after Emil Post. The game features twelve puzzles of increasing difficulty, with the first six solvable by hand and the last six drawn from research literature to demonstrate unsolvable instances.
In 2013, Mark Post unveiled the first lab-grown beef burger at a London event funded by Google co-founder Sergey Brin, costing $330,000 to produce. The burger received mixed reviews for texture but bland taste, yet sparked a global rush of 140 companies and $3 billion in investment into cultivated meat as a potential solution to climate change and food sustainability.