What kind of currency is bitcoin? What are some common ways of storing #1? Which of #2 is a physical object? Is #3 small enough to fit in a pocket?
Bitcoin
Bitcoin is a digital crypto currency. Bitcoin can be stored in tangible wallets, called hard wallets. Cryptocurrency hard wallets are the size of a thumb drive. Thumb drives can fit in your pocket.
decentralized cryptocurrency
Can you put bitcoin in your pocket?