As a solution, he proposed putting resources into building a decentralized exchange (DEX), to act as a trustless bridge between the two.
DEX should be trustless, serverless and Uniswap-like
Buterin’s plan calls for the DEX to be trustless and serverless, with a user experience very similar to Uniswap. Uniswap is a decentralized exchange that runs without an order book, instead relying on asset pairs with Ether as a fixed base currency.
Uniswap has just announced plans to release a V2 update in Q2 2020, which will allow direct token-to-token swaps.
Decentralized exchanges have struggled to gain market share against traditional exchanges, despite being more closely aligned to the overall trustless ethos of cryptocurrency. Part of the issue has been a lack of liquidity, although a dedicated Bitcoin–Ehereum DEX supported by Buterin may well see greater uptake.
Building bridges not limited to Bitcoin
Buterin specifically mentioned Zcash as one example, saying that he has already had discussions to this end with Zooko Wilcox, CEO of Zcash-creators, the Electric Coin Company. However, he admitted that they could both work harder to turn such talk into action.