Even Bitcoin (CRYPTO: BTC), the world's oldest and most developed cryptocurrency, is experiencing extreme price movements like a never-ending roller-coaster ride. Holding onto cash for many years would be a careless financial decision because inflation reduces a currency's value and, in turn, results in goods and services becoming more expensive over time. Sure, the ups and downs in Bitcoin's price are hard to stomach, but that's to be expected when dealing with an entirely new technology that has the potential to fundamentally change how people interact with and exchange value in the digital world.