Martin Kleppmann@martin.kleppmann.com1wThe unreasonable effectiveness of stickers as a currency for rewarding 3-year-olds5137
embedding-shapes@emsh.cat1wI think this is one of those things that work on everyone except "Adults who want to look the most Adult", everyone from children to seniors get excited by cool and fun stickers, only deeply serious people will act offended by receiving stickers.1