Understanding Blockchain is essential as it serves as the backbone of cryptocurrency. At its core, blockchain technology is a decentralized and distributed digital ledger that records transactions across many computers. This ensures that the record cannot be altered retroactively without the alteration of all subsequent blocks and the consensus of the network. The security and transparency offered by blockchain technology is what makes it an invaluable component of cryptocurrencies like Bitcoin and Ethereum.

Key features of blockchain that contribute to its role in cryptocurrency include:

1. Decentralization: Unlike traditional financial systems, blockchain eliminates the need for intermediaries, allowing users to transact directly with one another.
2. Immutability: Once data is recorded in a blockchain, it cannot be changed or deleted, which enhances security and trust among users.
3. Transparency: All transactions on a blockchain are visible to all participants in the network, fostering a sense of accountability.

Investing in digital currency can present a unique set of risks and rewards that every potential investor should consider. One of the primary risks is the volatility of digital assets. Prices can fluctuate wildly within a short period, leading to significant financial losses. Additionally, regulatory changes in different countries can impact the legality and stability of digital currencies, adding another layer of uncertainty. Cybersecurity threats, such as hacking and phishing attacks, pose further risks, jeopardizing investors’ assets.

On the flip side, digital currencies also offer enticing rewards. Firstly, their potential for high returns is a significant draw for many investors, as seen with early adopters of Bitcoin and Ethereum, who experienced astronomical gains. Secondly, the decentralized nature of digital currencies provides a level of financial independence not typically found in traditional investments. Furthermore, investing in digital currencies can also lead to diversification in an investment portfolio, potentially reducing risk and enhancing overall returns.

The question, Is Bitcoin dead?, has been a recurring theme since its inception, often fueled by market fluctuations and media sensationalism. However, it's essential to recognize that Bitcoin, the pioneer of cryptocurrency, has demonstrated remarkable resilience. Rather than being a fleeting trend, it has established itself as a digital asset class that continues to attract interest from both investors and institutional players alike. Historical price surges and dips illustrate not the death of Bitcoin but its capacity to weather storms, rebounding stronger each time.

One common myth surrounding Bitcoin is that it lacks intrinsic value, fueling skepticism about its longevity. Contrary to this belief, Bitcoin is underpinned by a robust technology—blockchain—ensuring security, transparency, and decentralization. Additionally, many view Bitcoin as 'digital gold,' a hedge against inflation and economic uncertainty. As more people recognize its potential, the question of Is Bitcoin dead? becomes less relevant, aligning more with an understanding that Bitcoin is evolving and finding its place in the broader financial ecosystem.