## Once a $2 billion Ethereum layer-2, Blast is shutting down after assets plunge 98% ## Once home to more than $2 billion in crypto assets, Blast is shutting down as activity fades, costs rise, and bigger platforms like Coinbase and Robinhood build networks of their own. - Blast said it will shut down after concluding that its Ethereum layer-2 network no longer makes economic sense to operate. - The closure points to consolidation among blockchains as security costs rise and platforms such as Coinbase and Robinhood build their own networks. - Blast activity has dried up after its speculative…