Bitcoin is a digital currency, often referred to as cryptocurrency, that operates on a decentralized network called the blockchain. Unlike traditional currencies, which are controlled by governments and financial institutions, Bitcoin is decentralized, meaning no single entity has control over it.

Here's a breakdown of Bitcoin's key features:

Bitcoin is regarded as a hedge against inflation due to its scarcity and fixed supply. Unlike traditional fiat currencies, such as the US dollar, which can be printed endlessly by central banks, Bitcoin has a predetermined supply limit of 21 million coins. This scarcity is hard-coded into the protocol and cannot be altered, making Bitcoin immune to the inflationary pressures that can devalue fiat currencies over time.

Since Bitcoin's launch in 2009, the US dollar has experienced significant inflation. The value of the dollar has eroded steadily due to factors such as quantitative easing, economic stimulus measures, and government debt accumulation. As a result, individuals holding dollars may see the purchasing power of their savings diminish over time.

In contrast, Bitcoin's fixed supply ensures that its value cannot be diluted through inflationary measures. The scarcity of Bitcoin is enforced by its decentralized network and consensus algorithm, which prevents any single entity from arbitrarily increasing the supply. This scarcity model is akin to precious metals like gold, which have historically served as hedges against inflation and store of value assets.