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The Fundamentals of Decentralization
Decentralization stands as the cornerstone of Bitcoin and other cryptocurrencies, necessitating a paradigm shift in how we perceive monetary systems. It refers to the process whereby control, governance, and operational power are distributed amongst a network of participants instead of being vested in a single, central entity. The function and characteristics of Bitcoin, including the finite total supply, rely on a consensus among a majority of participants in the network.
This decentralized design ensures robust resistance to censorship and manipulation, particularly significant in an age where governments and powerful entities continually attempt to exert control over cryptocurrencies. By dispersing authority across a network, cryptocurrencies like Bitcoin remain resilient against single points of failure, thereby increasing network stability.
Transactions executed on a decentralized network are recorded on a transparent, public ledger known as the blockchain, maintained by this network of users. This transparency engenders accountability within the system. It also provides users with heightened autonomy and privacy, removing the need for third-party intermediaries. Moreover, decentralization promotes open access and participation, allowing anyone to join and contribute to the network's growth and evolution.
Bitcoin
Bitcoin removes the need for trust in a transaction between strangers. Previously, we paid banks to be the arbiters of trust. Your bank would ensure that the opposite party had enough funds to pay you and make sure you received those funds. They would keep track of who has what money, how much, and who to send it to and fro. Now, we have an infallible, non-discriminatory internet protocol capable of the same thing instead of a profit-seeking corporation run by a board of directors looking to maximize profits at your expense!
This is what we mean when we say Bitcoin is decentralized. It is a peer-to-peer network with no centralized entity in charge and thus, no central point in which to attack.
In pre-Bitcoin projects, competitors and governments alike were able to pinpoint the people in charge and either run them out of business or force them to shut down. Satoshi Nakamoto, the creator(s) of Bitcoin, recognized this weakness and thus architected Bitcoin to be an open-source, permissionless network. This means that anyone, anywhere, may own bitcoins, help “run the network,” or even contribute to the code.
Three important factors impact the ability of the average person to run a node in a decentralized network such as Bitcoin:
- Bandwidth: The cost of downloading and broadcasting any blockchain-related data
- Compute: The cost of running the computations
- Storage: the cost of storing “state” (data) in order to continue processing new blocks of transactions
Deciphering Operational Decentralization
In an increasingly digitized world, the evaluation of operational decentralization in Proof-of-Stake (PoS) networks becomes a non-negotiable criterion. The distribution of validators and stake across geographical jurisdictions, node hosting infrastructure, and fundamental software components forms the cornerstone of such evaluation. A network's level of decentralization is invariably linked to its resilience against unanticipated software bugs, corporate and political adversities, and physical infrastructure failures.
Moreover, a thoroughly decentralized network ensures a secure, robust, and reliable system capable of enduring potential challenges. The role of such a network then extends beyond its primary function, thus contributing to its overall credibility and enhancing stakeholder trust.
The Significance of Decentralization
Decentralization is paramount for several key reasons:
- Enhanced Security: More decentralized systems demonstrate a superior defense against network attacks, offering more robust security guarantees.
- Reduced Risk of Manipulation: Higher levels of centralization could increase the risk of malicious community members taking control or exploiting decentralized applications (dApps).
- Resilience Against Regulatory Capture: Less decentralized systems could become victims of regulatory capture.
- Greater Transparency: The decentralized model facilitates less conflict of interest and more transparency, as changes cannot be enacted unless a majority of participating parties concur.
Moreover, proponents of Bitcoin argue that traditional monetary systems can exacerbate the disenfranchisement of specific populations, particularly in countries where financial product access is scarce or non-existent. Traditional financial products often demand two or more forms of government-issued identification, verifiable addresses, credit checks, and more, creating barriers to access for many. Cryptocurrencies, while criticized by some for potentially facilitating illicit activity, offer a solution for financial inclusivity, leading to a net positive impact regardless of such activity.
Why Do We Want Decentralization?
Bitcoin blossomed from the CypherPunk Movement and was born amidst the Great Financial Crisis of 2008, a time when banks were bailed out and the Fed deployed quantitative easing in an attempt toward economic recovery. This caused many people to question and criticize our monetary system: Why should the Fed have the power to expand/contract the money supply and decide who gets “bailed out”?
After all, inflation has destroyed the purchasing power of the USD over decades of money printing. There are still millions of people living paycheck to paycheck worldwide, many of whom do not have access to productive financial services. Theft and violence are also commonplace in these cash-based economies. Many Bitcoiners and Crypto fans are disturbed by this inequality and aim to serve this audience.
Bitcoin and many cryptocurrencies strive to circumvent the power of central banks and eliminate the requirements of the financial world through decentralization. Because they have no central entity that could censor transactions, charge fees, alter the existing rules, or be attacked or extorted by governments or bad entities, citizens of the world have the opportunity to gain a new form of freedom of speech. Additionally, this process of decentralization also removes the need for two forms of government ID, verifiable addresses, credit rating, and other requirements that are regularly needed in the financial services industry. People are tired of putting up with governmental monetary damage, various bank fees, and the growing degree of censorship when conducting their financial activity. Decentralized blockchains give everyone the chance to take back their privacy.
Why Is Decentralization Harder than Centralization?
In an increasingly centralized world, 100% decentralization is a difficult goal to achieve, if not impossible. Widely considered to be the most decentralized blockchain today, Bitcoin did not start off by being completely censorship-resistant. Satoshi Nakamoto was the creator and sole user in the beginning. It was not until years later that it became regarded as the most secure and decentralized blockchain thanks to its prolific user base, absence of administrators, and strong proof-of-work (PoW) protocol. Although nothing can be purely decentralized to start, it is certainly possible for a system to gain this vital feature as time goes on. However, establishing a sustainable blockchain while maintaining a strong level of decentralization is no small task.
The scalability trilemma, illustrated. Credits: Vitalik Buterin
The image above displays Buterin's Scalability Trilemma. The idea is that a blockchain can only have two of the three features while sacrificing the third. With the dominance of Bitcoin and Ethereum, many newer blockchains have gone in favor of scalability and security while attempting to maintain a sufficient amount of decentralization.
Decentralization is more difficult to achieve than centralization as it typically involves forfeiting scalability or security. For this reason, most blockchains do not even attempt to compete with the likes of Bitcoin and Ethereum, which have market dominance. Instead, they push their scalability features while labeling their qualities of decentralization as “good enough.” Decentralization is a valuable product and a noble goal, which is why it is important to consider the various metrics available.
