Most successful innovations take off the same way: you create something people want, and as sales increase, economies of scale make production cheaper, fueling demand. For crypto, it’s not that simple. As the volume of activity involving tokens like Bitcoin and Ether increases, the slower and more expensive it becomes to record and secure every transaction. Various efforts are being made to fix the problem, but all of them make the system more vulnerable to bad actors or weaken the decentralized model that is key to crypto’s appeal. This “Blockchain Trilemma” is one of the thorniest challenges for the widespread adoption of crypto technology.