Think about what happened in the last 2 days:
Binance was robbed with $40M worth of BTC.
CEO of Binance (top exchange) gathered Bitcoin top core devs and Bitmain’s CEO (top miner) to have a closed-door discussion on the possibility to reorg the Bitcoin chain.
Ok, they decided not to reorg, but should that be an option?
That’s why Shelley is being build. I hope Cardano will show the best descentralized model ever seen. The world needs it.