DeFi opens up a world of financial possibilities for those with access to stablecoins and cryptocurrencies regardless of their identity, nationality or location. The downside, for now, is that DeFi can be expensive for retail users. The fees for using the Ethereum blockchain, aka “gas fees,” can exceed $300 per transaction, no matter if you’re a so-called whale making a million-dollar investment or just trying to convert $100 worth of stablecoins into ether or another cryptocurrency.