- Blockchain is a digital ledger that records every transaction on a public network.
- Once a transaction is recorded, it cannot be changed or deleted.
- It is the foundation of Bitcoin, Ethereum, and thousands of other cryptocurrencies.


Sometimes the best luck comes from running out of options. An Ashville, Ohio man spent all day hunting for a specific lottery ticket called Extreme Million. Every store had sold out.
By the time he reached a GetGo store in Columbus, he'd struck out everywhere. He bought a $1,000,000 Cashword ticket instead with the cash he had left and scratched it in his car.
He scratched 14 words and had a coworker scan it with the official app. The result: $1,000,000. His reaction: "You gotta be kidding me."
The original ticket he wanted would never have made him rich. His second choice handed him seven figures.
He told lottery officials his plan: pay off the house, pay off the car, take his wife on a trip. It's the smart approach - handle obligations first, then enjoy. No talk of sports cars or mansions.
Lottery tickets aren't investments. But the story shows persistence and flexibility sometimes beat a strict plan.
He looked for one thing, couldn't find it, and settled for something better instead. That's where luck and preparation meet.