What do you define as aggressively adopted? The Ethereum Enterprise Alliance has 500+ members including many Fortune 500 companies. There is widespread experi

What do you define as aggressively adopted? The Ethereum Enterprise Alliance has 500+ members including many Fortune 500 companies. There is widespread experimention with blockchain technology by government, academia and industry. For example, the majority of central banks are experimenting with blockchain/distributed-ledger technology: https://qz.com/1083712/one-in-five-central-banks-say-they-will-be-using-blockchain-tech-by-2019/ https://qz.com/1083712/one-in-five-central-banks-say-they-wi... NASA is researching using blockchain technology for spacecraft navigation: https://www.uakron.edu/engineering/ECE/news-detail.dot?newsId=c9a2717e-4327-4dcb-9040-87e788d068c4 https://www.uakron.edu/engineering/ECE/news-detail.dot?newsI...