opportunity to sponsor initial use just like a software product.

Plasma has got a concept of the pay-company-type: custom gas tokens. Rather than requiring all users or applications to store the native token of the chain to execute contracts, Plasma allows payment of fees using USDT (and even pBTC) to flows supported. This is a major puzzle solved on the real products because the expenses to be incurred can be projected in the same currency business receives income and the users do not need to carry some additional tokens.

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$XPL