As little as six months ago, bitcoin was moribund, with prices languishing at a fifth of their record high, disappointing a mass of cryptocurrency enthusiasts who had grown use to extreme — and often upwards — moves in the virtual currency.

But this week’s Asia Blockchain Summit in Taipei highlighted how volatility is back, reviving the excitement around crypto trading.

“Bitcoin is fun, but it’s a hell of a lot more fun at 100 times leverage,” said Arthur Hayes, the founder and CEO of the exchange BitMEX. “That’s what people want to see in crypto, they want that high volatility,” he said. “At the end of the day, we’re all in the entertainment business of traders.”

The Taipei conference was the second annual iteration of an Asia forum that brings investors together with start-ups, financial services providers, academics and others to engage on the blockchain technology that powers digital coins.

“We’re surfing a wave here that’s very linked to the price of Bitcoin and probably has taken a couple months to filter through,” said attendee Vincent Alibert of ZVChain, a business-to-business blockchain project, in an interview. “We don’t see any more of these revolutionary ICO pitches,” he said, referring to initial coin offerings, which have generally lost favour after many tokens lost more than 90% of their value.

A bitcoin — or rather, someone dressed as one — wandered around the venue. The chairs in the conference hall had covers from crypto.com: “Get 8% p.a. on your Crypto,” they declared. Much of the conference was spent on Facebook’s plans to launch the new Libra cryptocurrency, which proponents say will spark more mainstream interest in virtual currencies.

Buzz

“It’ll definitely bring more people into the space,” said Charlie Lee, the creator of litecoin, speaking on a panel.

Tron, which bills itself as the largest decentralised ecosystem in the world, displayed a giant poster near the registration area about CEO Justin Sun winning the annual charity lunch with Berkshire Hathaway’s Warren Buffett. The successful bid of $4 567 888 featured prominently.

Despite the buzz, there were some sceptics present. One of bitcoin’s most prominent detractors, New York University Professor Nouriel Roubini, spoke at the conference to reiterate his argument that “there’s massive, massive amounts of price manipulation” in cryptocurrencies. He cited a lack of security and scaleability, along with concentration of crypto ownership among his concerns with the industry.