A heated debate is currently in progress among bitcoin’s technical community. The debate centers on whether or not the community should modify the bitcoin protocol so that it can handle greater transaction volumes. One of the easier metrics to help us understand why this is important is transactions per second (tps). To highlight the scale issue the bitcoin protocol is facing: Visa currently runs at ~2,000 tps, PayPal at ~115 tps and bitcoin at a theoretical rate of just ~2.8 tps (currently 1/2 that).