Ive lost count of the number of times people have asked me to explain what bitcoin is over the years, but I dont think anyone has ever asked me to explain ethereum.

Probably because, by the time Ive finished with bitcoin, their eyes have glazed over and they want to save themselves another earful.

But today we ask what is ethereum?

If you thought explaining bitcoin was hard...

Ethereum has been, by market cap, the second-largest cryptocurrency since 2018. Its the brainchild of Russian-Canadian programming prodigy, Vitalik Buterin, who first proposed the idea in a white paper in 2013.

Buterin had already been into bitcoin for several years by this point. He first found out about bitcoin from his dad, a computer scientist, in 2011, at the age of just 17, while he was at university (he would soon drop out). He went on to found Bitcoin Magazine that same year.

Just to make you feel inadequate, Buterin is still only 27 and is a billionaire many times over so many times over that hes already given away over $2bn in philanthropy.

Philosophically, Buterin is pretty hardcore techno-libertarian. In 2018 he authored a paper with economist Glen Weyl called Liberation Through Radical Decentralisation, in which he proposed ways to harness markets and technology to radically decentralise power of all sorts and shift our reliance from authority and to formal rules.

In 2019 his paper, A Flexible Design for Funding Public Goods, written with Harvard PhD student Zoe Hitzig, sets out a new method for the optimal provision of public goods and services, using quadratic voting a more nuanced system of voting that allows for a much more direct system of democracy than current representative systems.

Buterin published his ethereum white paper in 2013. He chose the name after browsing a list of elements on Wikipedia. It sounded nice, he said, and had the word ether, referring to the hypothetical invisible medium that permeates the universe and allows light to travel.

He announced the project in 2014 at the North American Bitcoin Conference and development began with an all-star founding team that included Anthony Di Iorio, Charles Hoskinson (founder of Cardano), Mihai Alisie and Amir Chetrit, and soon after Joseph Lubin, Gavin Wood, and Jeffrey Wilcke.

They raised money to found the project via crowdfunding in the summer of that year. By that point, Buterin was already regarded in crypto coding circles as a prodigy.

I remember being invited to participate in that funding, but got annoyed by how badly the project was explained that I didnt go ahead. Duh!

The project eventually went live in 2015 and, despite numerous setbacks, including a $50m hack after a $150m crowdsale and numerous forks, the project must be deemed to have been a huge success.

The ethereum market cap is some $400bn. Ether, the currency that changes hands over the ethereum network, has gone from below a dollar in late 2015 to $3,500 today.

The founding principle of the project was to use blockchain technology for purposes beyond an alternative system of digital money. Bitcoin has its blockchain, so does ethereum a separate network altogether, using similar distributed ledger technology (aka blockchain) to verify and record transactions.

Like most crypto currencies, ethereum is an open source platform. Ether is used and accepted as a means of payment, but that is not really the purpose of ethereum.

Charlie Morris of Byte Tree likens it to a decentralised App Store. Developers can use the platform to build and publish smart contracts and distributed applications (dApps), and it is a kind of marketplace for financial services (Defi), NFTs (non-fungible tokens), games, and apps, all of which can be paid for in ether.

Hence why it is known as the worlds programmable blockchain. It can be used, it claims, to codify, decentralise, secure, and trade just about anything.

So coders can deploy decentralised applications onto the ethereum blockchain. These become immutable and permanent, and users can interact with them.

Decentralised finance (DeFi) applications allow for all sorts of financial services decentralised exchanges, for example, or borrowing and lending systems without the need for typical financial intermediaries such as banks or brokerages.

Ethereum allows for the creation and trade of NFTs tokens which are connected to digital works of art and other forms of digital property.

Many use the platform for initial coin offerings, and many cryptocurrencies actually operate on the ethereum blockchain (as what are known as ERC-20 tokens). DAOs digital autonomous organisations are taking shape on the platform.

So, all in all, ethereum has found plenty of use, and it has been a fantastic means to play the incredible innovation taking place in this sector.

One of my close bitcoin original gangster mates, who in this instance Im sure would rather not be named, is forever saying to me, ethereum should fail and its a mystery to me why it doesnt.

Many feel the same way. The blockchain is not nearly as robust as bitcoins; ethereum is not properly decentralised, and the numerous forks that have taken place in reaction to hacks prove this, say critics they would not be possible with a properly decentralised platform. Too many coins were pre-mined and handed out to founders. Ethereum 2.0 has met with delay after delay. Transaction costs, known as gas fees, are exorbitant (I can vouch for this). At times they cost several hundred dollars, when they should cost pennies. Its a ticking time bomb, say critics.

Maybe. Ethereum has numerous competitors Binance Smart Chain, Polkadot, Cardano, Terra, and Solana, for example. Cardano and Solana have both had extraordinary runs, the latter just in recent weeks. Many of these are technologically superior, say critics faster, more robust. Certainly they dont have exorbitant gas fees.

But the one thing they dont have is the network of users. Ethereum has that. It is the first coin the general public thinks of after bitcoin, even if they cant pronounce it properly. That is what first-mover advantage often gives you.

But that is the market. Everyone submits their offering, makes their argument and price is the outcome. The best man doesnt always win.

Ethereum is second only to bitcoin. Its had a great year, on the back of several great years. Its like silver to bitcoins gold as well as having many more uses, it is more volatile. It often moves later in the cycle but by more, but when the correction comes it gets hit by more too.

In late 2015 it traded as low as $0.42. It went all the way to $1,400 by early 2017. It then lost 95% of its value and plummeted to $80. In the correction of this year, it lost over 60%. But the bottom line is that it began 2021 below $800 and now its over four times higher at $3,500.

The direction is up. But for how much longer?

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Everything you wanted to know about ethereum but were too afraid to ask - MoneyWeek