As a former blockchain product lead at硅谷, I’ve watched Ledger’s decline up close. The discontinuation of Nano S—a 2016 icon with 1.5M units sold—isn’t just obsolescence; it’s a strategic miscalculation. Users trusted its open, self-custodied ethos. Now, forced into upgrade cycles, they face fragmentation in security and trust. This isn’t technical debt—it’s cultural betrayal.