How many Bitcoins have been lost?

As a keen observer of the cryptocurrency landscape, I'm often curious about the state of Bitcoin's existence. Specifically, the question that frequently arises in my mind is: "How many Bitcoins have been lost?" This inquiry stems from the understanding that Bitcoin, as a decentralized digital currency, relies heavily on its users to securely store their coins. Given the inherent complexity of private key management and the risks of hardware failures, hacking, or even human error, it's no surprise that some Bitcoins may have fallen into oblivion. However, the precise number of lost Bitcoins remains a mystery, and I'm eager to gain a deeper understanding of this phenomenon and its implications for the overall Bitcoin economy.