What is the most popular cryptocurrency?
The most popular cryptocurrency is Bitcoin. Introduced in 2009, it is the first and most widely used decentralized cryptocurrency. Its popularity is due to its pioneering nature, widespread adoption, and the significant infrastructure that has been built around it.
Complete the following task based on the instruction and optional input provided.### Instruction:
What is the most popular cryptocurrency?

### Output:
The most popular cryptocurrency is Bitcoin. Introduced in 2009, it is the first and most widely used decentralized cryptocurrency. Its popularity is due to its pioneering nature, widespread adoption, and the significant infrastructure that has been built around it.