A few years ago, my friend Tom, a tech-savvy engineer, became fascinated with cryptocurrencies. He invested a modest sum in Bitcoin when it was still relatively unknown. At parties, he would passionately explain blockchain technology, often met with blank stares. One night, at a gathering, he convinced our skeptical friend Sarah to invest a small amount, just for fun. Fast forward to today, Tom's initial investment has grown exponentially, allowing him to buy his dream house. Sarah, who had forgotten about her tiny investment, recently discovered it had ballooned into a significant sum. She called Tom, laughing in disbelief. It was a surreal reminder of how the digital gold rush could turn casual curiosity into unexpected fortune.