The World According to Blockchain
Question: Can Blockchain Scale?
The key to blockchain is that every node finds out about every transaction. That, however, leads to the challenge of keeping pace. Due.com calls bitcoin’s blockchain capacity "terribly limited." It can process 7 transactions per second (tps). The story juxtaposes that against Visa’s average of 2,000 tps and peak capacity of 50,000 tps. One answer is to increase the block size, in order to increase the space available and thus the speed. There are political challenges to doing so, however.