Explore the volatile world of cryptocurrency in this 20-minute Web Summit conference talk featuring Garry Tan, Tim Draper, Peter Smith, and Jen Wieczner. Delve into the dramatic fluctuations in digital coin valuations that have characterized the crypto revolution. Gain insights on Bitcoin's future, the overall crypto market cap, and the role of platforms like Coinbase. Examine the debate between centralized and decentralized systems, and the importance of user control in the crypto space. Conclude with expert predictions and final thoughts on whether 2019 will see cryptocurrency emerge as a consistent challenger to established currency markets.