Bitcoin

However, it fits a quiet but persistent narrative: retro tech, cypherpunk-adjacent communications, and decentralized/offline-first systems are being rediscovered by builders. In a market where BTC dominance is high and altcoins are underperforming, attention is scarce and rotates toward cultural/narrative niches rather than fundamentals.

A voice-based bulletin board system (BBS) called Sanity's Edge, originally from 1994, is presented at a URL and discussed on Hacker News.