LAGOS, Portugal — The Bam Bam Beach Bitcoin bar, on an uncrowded beach in southwestern Portugal, is the meeting place.To get there, you drive past a boat harbor, oceanside hotels and apartment buildings, then park near a sleepy seafood restaurant and walk down a wooden path that cuts through a sand dune. Yellow Bitcoin flags blow in the wind. The conversations about cryptocurrencies and a decentralized future flow.“People always doubt when to buy, when to sell,” said Didi Taihuttu, a Dutch investor who moved to town this summer and is one of Bam Bam’s owners. “We solve that by being all in.”Sitting in the sand nearby, another bar regular, Katherin Bestandig, said, “Everything is possible if you’re brave.”The bar and community of about 150 crypto supporters around the town of Lagos are a bubble of optimism amid what has become known as the “crypto …
