Motley Fool's Adam Levy lays out a case for PayPal ([[PYPL]] +1.0%) to develop its own cryptocurrency, similar to Facebook's attempt to launch Libra digital currency.He doesn't provide any evidence that PayPal is actually exploring the possibility, but notes that developing its own crypto would reduce PayPal's dependence on traditional banking and payment partners, which would enable it to lower its fees and fatten profit margins.Levy sees "a lot of potential for combining the utility of cryptocurrency with PayPal's expansive network of consumers and merchants.""With its strong free cash flow, PayPal has the funds to acquire companies in the space and spend money on developing new technology, so it could move fast if it sees good results with the features it just announced," he wrote.Last week, PayPal announced the launch of a crypto service where customers can buy, hold and sell Bitcoin and eventually will be able to use Bitcoin