What does that mean for you?
A smart contract carries out written rules on the network. The word contract does not mean a program is safe, correct or an agreement a court will enforce in every situation.
Ethereum uses proof-of-stake, in which validators lock up coins to participate in adding blocks. Bitcoin uses proof-of-work, with miners spending computing effort and energy.
Can you picture an example?
Imagine someone mentions an application running on Ethereum. They are describing software using that network, not a feature automatically available on Bitcoin. A shared word like blockchain does not make the systems interchangeable.
What should you remember?
Distinguish the platform, its native asset and tokens recorded through it. Each can raise different questions. This introduction does not compare prices, recommend an asset or cover how to connect to an application.