What Gives Bitcoin Value? Consensus, Scarcity, and Utility比特幣的價值從哪裡來?共識、稀缺性與用途

What Gives Bitcoin Value? Consensus, Scarcity, and Utility比特幣的價值從哪裡來?共識、稀缺性與用途

比特幣的價值從哪裡來?共識、稀缺性與用途
In short摘要

Bitcoin's value examined through three lenses — consensus, scarcity and utility — starting from why the currency-versus-asset distinction comes first.從共識、稀缺性與用途三個角度檢視比特幣的價值,並先釐清「貨幣」與「資產」的差別。

Distinguishing Currency from Assets

Recently, many articles have delved into where the true value of Bitcoin lies. Most discussions begin with its supply cap, comparing it to the traditional asset, gold. Simply put, Bitcoin has strict limitations hardcoded into its protocol—the total supply is capped at 21 million coins, no more, no less. Lost private keys do not trigger “re-issuance.” Because this closely mirrors the scarcity of gold, many refer to it as “Digital Gold.” Proponents further argue that Bitcoin is more portable, resistant to centralized control, and easier to self-custody than physical gold.

However, the financial world also harbors significant skepticism. Critics reject the “Digital Gold” label, pointing to Bitcoin’s extreme volatility (though gold has seen its own share of turbulence recently) and a perceived lack of intrinsic value. Unlike gold, which has industrial applications, Bitcoin seems to serve no purpose other than being an asset. Furthermore, questions persist regarding the highly speculative nature of its holders and trading patterns.

In this article, I will set aside the debate over whether Bitcoin is “Digital Gold” or a “worthy” asset. Instead, I want to discuss the concept of “Value” itself, examining this digital creation through three specific lenses. As for whether it possesses value, is worth an investment, or will one day reach a million dollars per coin—I leave those judgments to the reader’s own reflection.

Before discussing value, we should clarify the difference between “Currency” and “Assets.” According to financial standards, a currency generally requires universal acceptance, ease of recognition, divisibility, uniformity, and portability to function as a daily medium of exchange. In many regions, Bitcoin clearly lacks “universal acceptance”—many have heard the name but don’t know how to use it, and merchant adoption remains low. Thus, it is still far from being a universal currency.

An Asset, on the other hand, refers to a resource with economic value that can store wealth or provide future benefits (such as gold, stocks, or real estate). Unlike currency, an asset does not necessarily need to be widely accepted for payment; its primary emphasis is on its store of value function. In many circles, Bitcoin is viewed as an “alternative asset”—a digital version of gold—meant for storing value rather than making daily payments.

Where Does Value Come From?

The value of an object is a highly subjective concept. If an object is meaningful to you, if you recognize it, need it, or want it, it has value to you. But that value may not translate to someone else. For example: imagine you take your family on a trip and pay a street artist $2,000 for a family portrait. To you and your family, that painting is worth roughly $2,000. To a passing stranger, however, that same painting might be unwanted even if offered for free. Here, the discrepancy in value is stark.

From this example, we can see that for an object to possess broader value, the first essential element is Consensus. With consensus, any object can be used for trade. Think back to playing “flea market” in elementary school using the toy banknotes found in the back of math textbooks. If everyone agreed the red note was $100 and the blue was $1,000, they gained transactional value. We could even change the rules, and as long as the classmates agreed, the system worked. To trade an item with more people, you simply need a broader consensus.

However, if one student could easily print massive amounts of those notes at home and bring them to school, would the consensus hold? This brings us to the second element: Scarcity. Rarer items are generally assigned higher values. We see this everywhere: limited-edition concert tickets or sneakers trigger frenzied demand and sky-high prices. Even in geopolitics, when oil supply is expected to drop, prices rise. Purely from a quantitative standpoint, when all else is equal but supply decreases, subjective value tends to increase.

Finally, there is Utility. Consider two tutors, both juniors in Electrical Engineering. One has a stellar track record, with all three of their students getting into their dream universities. The other taught three students, but none reached their goals. Which tutor can command a higher price per hour? The answer is obvious. This leads to the question many ask about Bitcoin: “Once I buy it, what can I actually do with it?”

The Interconnectedness of the Three Elements

These three factors—Consensus, Scarcity, and Utility—are not independent; they are deeply intertwined. A thing without consensus has no market value regardless of how scarce it is. A unique, out-of-print Pokémon card might sell for $1 million in New York, but to a breakfast shop owner in Taiwan who has no interest in cards, the price is incomprehensible because there is no shared consensus on its utility or value.

Conversely, even if something has high utility, if it is ubiquitous, its value remains low. Paper products are essential and used daily, but because they are easily mass-produced, their unit value is low. It is also worth noting that an item doesn’t need all three to have value. Fiat currency relies almost entirely on massive consensus and trust in the issuing government; if that trust vanishes, the value collapses regardless of utility.

Each asset’s value is a unique mix of these three factors, and they constantly influence how we perceive what an object is “worth.”

What About Bitcoin?

Re-examining Bitcoin through these three lenses as of early 2026:

  • Consensus: Bitcoin still needs to be understood and accepted by more people—not just individuals, but governments and institutions. Gold’s consensus was built over millennia; Bitcoin clearly needs more time to mature.
  • Scarcity: Bitcoin’s design satisfies this perfectly. As of April 2026, over 20 million BTC have been mined (approx. 95% of the total). Less than 1 million remain to be minted at an increasingly slow rate (currently around 450 BTC per day) until the year 2140. Furthermore, an estimated 3 to 4 million BTC are permanently lost due to misplaced keys, making the actual circulating supply even smaller than the theoretical cap. This “mathematically guaranteed absolute scarcity” is more transparent and certain than that of gold.
  • Utility: The Lightning Network has significantly improved Bitcoin’s potential as a medium of exchange by lowering fees and increasing transaction speeds. However, many people still don’t recognize Bitcoin, and even those who do find merchant adoption low or existing digital payment systems more convenient. This reinforces its current role as a “Value Store” asset rather than a “Daily Payment” currency. Consensus drives utility, and improved utility drives consensus. This complex evolution requires time to validate.

What I Take Away

Every valuable item in the world—from oil, gold, and stocks to the ham and egg toast you had for breakfast—can be analyzed through these three factors. Bitcoin is no exception.

Whether it is a worthy investment depends on whether you believe its current shortcomings can be improved in the future, and how likely that improvement is. Use these lenses to evaluate if the potential rewards outweigh the current risks. The same test applies past Bitcoin — I’d already run into a version of it at ETH Taipei 2025, where Vitalik Buterin asked whether we’d still be here if Ethereum’s price had never skyrocketed, a question that led me to conclude its worth lies in its ethos and vision rather than its market price.

Good luck with your investments!

先區分貨幣與資產

最近有不少文章在談比特幣真正的價值在哪裡。多數討論都從它的發行上限開始,拿它跟黃金這個傳統資產比較。簡單說,比特幣的協議裡寫死了嚴格的限制——總量上限 2100 萬顆,不多也不少。私鑰遺失也不會觸發「補發」。因為這點很接近黃金的稀缺性,許多人把它稱作「數位黃金」。支持者還會進一步主張,比特幣比實體黃金更好攜帶、更難被中心化控制,也更容易自我保管。

不過金融圈同樣存在不小的質疑。批評者不接受「數位黃金」這個標籤,理由是比特幣的波動極大(雖然黃金近來也有自己的一段動盪),而且缺乏所謂的內在價值。黃金有工業用途,比特幣看起來除了當作一項資產之外沒有別的用處。此外,關於持有者結構與交易型態高度投機的疑慮也一直存在。

這篇文章我不打算加入「比特幣是不是數位黃金」或「值不值得」的辯論。我想談的是「價值」這個概念本身,用三個角度來檢視這個數位造物。至於它究竟有沒有價值、值不值得投資、有沒有一天會漲到一顆一百萬美元,我留給讀者自己判斷。

在談價值之前,我們該先釐清「貨幣」與「資產」的差別。依照金融上的標準,貨幣一般需要具備普遍接受性、易於辨識、可分割、規格一致與便於攜帶,才能作為日常的交易媒介。在許多地區,比特幣顯然缺乏「普遍接受性」——很多人聽過這個名字,卻不知道怎麼用,商家的採用率也仍低。因此它離通用貨幣還很遠。

資產則是指具有經濟價值、能儲存財富或帶來未來效益的資源(例如黃金、股票或房地產)。與貨幣不同,資產不一定要被廣泛接受作為支付工具,它強調的主要是價值儲存的功能。在不少圈子裡,比特幣被視為一種「另類資產」——黃金的數位版本——目的是儲存價值,而不是拿來日常支付。

價值從哪裡來?

一件東西的價值是高度主觀的概念。如果一件東西對你有意義、你認可它、需要它或想要它,那它對你就有價值。但這份價值未必對別人成立。舉個例子:你帶家人出去玩,花 2000 元請街頭畫家畫了一幅全家福。對你和家人來說,那幅畫大約值 2000 元;但對路過的陌生人來說,那幅畫就算免費送他可能也不想要。這裡的價值落差非常明顯。

從這個例子可以看到,一件東西要具備比較廣的價值,第一個必要元素是共識。有了共識,任何東西都能拿來交易。回想小學時玩「跳蚤市場」,用數學課本後面附的玩具鈔票。只要大家都同意紅色那張是 100 元、藍色那張是 1000 元,它們就有了交易價值。我們甚至可以改規則,只要同學們同意,這套系統就照樣運作。想跟更多人交易一件東西,你需要的就是更廣的共識。

但如果有個同學能輕鬆在家印出一大疊那種鈔票帶到學校,共識還撐得住嗎?這帶出第二個元素:稀缺性。越稀有的東西,一般會被賦予越高的價值。這種現象到處都是:限量的演唱會門票或球鞋會引發搶購與高價。就連地緣政治上,當石油供給預期減少時,價格就會上漲。純粹從數量的角度看,其他條件不變而供給減少時,主觀價值傾向上升。

最後是用途。想像兩位家教,都是電機系大三生。一位戰績亮眼,帶過的三個學生都上了理想的大學;另一位也帶過三個學生,但沒有人達標。哪一位能開出比較高的時薪?答案很明顯。這也帶到很多人對比特幣的疑問:「我買了之後,到底能拿它什麼?」

三個元素彼此交織

共識、稀缺性與用途這三個因素並不獨立,它們深深交纏。一個沒有共識的東西,再稀有也沒有市場價值。一張獨一無二的絕版寶可夢卡在紐約也許能賣到一百萬美元,但對一位對卡片毫無興趣的台灣早餐店老闆而言,這個價格難以理解,因為對它的用途與價值並不存在共同的共識。

反過來說,一件東西就算用途很高,只要它到處都是,價值仍然偏低。紙製品是生活必需、每天都用,但因為容易大量生產,單位價值就低。另外值得注意的是,一件東西不必三者兼具才有價值。法定貨幣幾乎完全仰賴龐大的共識與對發行政府的信任;一旦信任消失,價值就會崩潰,不管它多有用。

每項資產的價值都是這三個因素的獨特組合,而它們持續影響著我們如何看待一件東西「值多少」。

那比特幣呢?

以 2026 年初的狀況,用這三個角度重新檢視比特幣:

  • 共識: 比特幣仍需要被更多人理解與接受——不只是個人,還包括政府與機構。黃金的共識是數千年累積出來的;比特幣顯然還需要更多時間成熟。
  • 稀缺性: 比特幣的設計完美滿足這一點。截至 2026 年 4 月,已挖出超過 2000 萬顆 BTC(約占總量的 95%)。剩下不到 100 萬顆會以越來越慢的速度鑄出(目前每天約 450 顆),一路到 2140 年。此外,估計有 300 萬到 400 萬顆 BTC 因私鑰遺失而永久消失,使得實際流通量比理論上限還小。這種「數學上保證的絕對稀缺」,比黃金更透明也更確定。
  • 用途: 閃電網路藉由降低手續費、提高交易速度,明顯改善了比特幣作為交易媒介的潛力。但仍有很多人不認識比特幣,就算認識的人也會發現商家採用率低,或既有的數位支付更方便。這強化了它目前作為「價值儲存」資產、而非「日常支付」貨幣的角色。共識推動用途,用途改善又回過頭推動共識。這個複雜的演進需要時間驗證。

我的收穫

世界上每一件有價值的東西——從石油、黃金、股票,到你早餐吃的那份火腿蛋吐司——都可以用這三個因素來拆解。比特幣也不例外。

它值不值得投資,取決於你是否相信它目前的不足未來能被改善,以及改善的機率有多高。用這幾個角度去評估潛在報酬是否勝過當前風險。這套測試也適用於比特幣之外——我在 ETH Taipei 2025 就已經遇過它的一個版本,Vitalik Buterin 問,如果以太坊的價格從來沒有暴漲,我們還會不會在這裡;那個問題讓我得出的結論是,它的價值在於精神與願景,而不是市場價格。

祝各位投資順利!