The flippening is a hypothetical moment when Ethereum overtakes bitcoin in market capitalization and becomes the number one cryptocurrency. The reverse scenario is jokingly called the floppening.

Fintech is an industry that brings together companies that use technology and innovation to transform financial services. It includes payment services, neobanks, and also blockchain-based solutions.

A mining rig is a computing device for mining cryptocurrency, most often built on the basis of a computer with several graphics cards. The chance of receiving a block reward depends on its power.

Simplified Payment Verification (SPV) is a method of verifying transactions on a blockchain without downloading the entire chain of blocks. Block headers are enough, which makes the technology the foundation of lightweight crypto wallets.

Bitcoin Days Destroyed is a network activity metric that takes into account not only the volume of coins moved but also the time they spent idle. It helps assess the movement of "old" coins.