Elon Musk’s epic four-day stint at the peak of global wealth has come to a tragic end after the tycoon’s itchy Twitter finger triggered more financial upheaval.

Musk lost $15 billion from his net worth in a single day after Tesla shares tumbled 8.6% on Monday.

The sharp decline allowed fellow space-botherer Jeff Bezos to reclaim the crown of world’s richest person , with a ludicrous net worth of $186 billion.

Bloomberg attributed some of the losses to Musk’s Twitter activity. The SpaceX founder tweeted on Saturday that the prices of Bitcoin and Ether “do seem high,” two weeks after Tesla announced it had snapped up $1.5 billion in Bitcoin.

Analysts estimate that Tesla made $1 billion in profit on the investment in just over a month, after the cryptocurrency hit a record high of $58,000 over the weekend. But on Monday, Bitcoin plummeted by as much as 10%, showing the risks of tying Tesla share prices to the value of the volatile token.

Musk’s tweet certainly isn’t solely responsible for Bitcoin’s flash crash or Tesla’s biggest drop since September. But his ability to influence investors through social media could get him in further trouble with the US Securities and Exchange Commission (SEC).

Musk had mercifully pledged to take a break from Twitter on February 2, but his love for self-promotion, stolen memes, and crypto bantz brought him back to the platform just two days later. A longer stint away from social media might be a wise idea if he wants to avoid another spat with the financial regulators.

Watch Tesla’s meteoric rise — set to techno-remixed Elon Musk tweets

Tesla eclipsed Toyota to become the world’s largest car maker by market cap last week — truly a milestone in automotive history.

While founded in 2003, it’s been 10 years since the Elon Musk-led electric car company (that also produces batteries) went public. In that time, its market value has grown spectacularly, by nearly 10,000%.

Yep, that’s right. 10,000%. At the end of its first day of public trading on June 29, 2010, Tesla stock finished at $23.89 , awarding it a $2.2 billion market value.

Last Thursday (a decade later), $TSLA closed at $1,208.66; pushing its market cap beyond $224 billion, almost 30% more than Toyota. Indeed, Japan’s Toyota, the top automaker in the world for eons, had finally been toppled; and by an electric car company no less.

Hard Fork figured we’d celebrate, and what better way than with dance music.

So, an ode to last winter’s surprise dance hit Don’t Doubt ur Vibe: turn up the volume and sit back as you watch Tesla race the world’s top automakers over the past 10 years, set to a remixed curation of Elon Musk‘s best tweets .

Because why the hell not.

This article and video is for entertainment purposes only. Don’t pretend this is investment advice, because it’s not. Always do your own research. Data visuals (sans music) made with Flourish.

Bitcoin and blockchain books for every reading level — from baby to big brain

There are loads of books out there about Bitcoin, cryptocurrency, and blockchain, but which should you choose this Christmas ? Maybe you’re looking for a gift, or perhaps want to use some of your holiday time to read one yourself.

Well, let us give you a helping hand. Hard Fork has picked out some options for a variety of experience — and reading — levels. Take a look!

For the baby in your life

No one is too old, and for that matter too young, for Bitcoin. So, what better way of getting your offspring into cryptocurrency than gently nudging them towards it during their formative years! Or maybe you just want to help them with their ABCs with words more interesting than apple, boat, and cat.

If that’s the case then Graeme Moore’s: “B is for Bitcoin” will be right up your street. Moore came up with the idea for the book after realizing that he needed a way to speak to his two-year-old niece about, you guessed it, Bitcoin.

If you or the hodler in your life is looking for a similar excuse, buy them this book and pray for their children.

Buy it here .

For the beginner

If you’re looking for a book about Bitcoin or cryptocurrency for someone just getting into the topic, Dominic Frisby’s: “Bitcoin, The Future of Money,” is a great place to start. Frisby was formerly a comedian-cum-financial columnist and has a witty and wry spin which he uses to explain Bitcoin and its history in plain English.

I personally rave about this book a lot because it is such a good page-turner, and it’s unlikely to alienate any of its readers. Numerous sections of this book read more like a political crime thriller than they do a book about an emerging technology. It serves for an entertaining read regardless of experience, but is a great place to start for complete newbies.

Buy it here .

For the intermediate

Blockchain Basics by Daniel Drescher is great if you’re buying a book for someone who’s got their handle on all things cryptocurrency and blockchain, but is still looking for a foundation of knowledge to build on.

What’s great about Drescher’s book is that it isn’t tied to any particular coin or cryptocurrency project, so it gives a good generalist’s overview. A useful starting point if you’re beginning to build on some basic knowledge.

Like Frisby, Drescher writes in an easily comprehensible style that opens up a highly technical topic to a broader audience by splitting down the topic into a number of steps. The steps get more complex as you progress through, but by then you’ll already be building your understanding so it shouldn’t be too challenging.

Buy it here .

For the more advanced

Bitcoin and cryptocurrency is a massive topic, and if you class yourself as advanced, you’ve probably read most of what there is to read on it. But if you’re just getting into the more technical aspects of Bitcoin and cryptocurrency and are looking for one book that gives a broad overview of Bitcoin, from fundamentals to deeper dives on specific developments, then Andreas Antonopoulos’: “Mastering Bitcoin” is a good place to start.

You’ll learn more than just the Bitcoin protocol and also look at decentralized networks, peer-to-peer architecture, and beyond . If the Amazon reviews are anything to go by, people are very pleased after reading this book.

One reviewer on Amazon said : “If you are planning to do any kind of serious technical work related to Bitcoin or any other cryptocurrency then this is the best place to start.”

Buy it here .

Like I said at the top of this article, the mountain of available books about Bitcoin, blockchain, and cryptocurrency is ever growing. I certainly haven’t read them all, but these are a few favorites that rate highly among those that have.

So, go out and read, read, and read some more, so long as it’s about Bitcoin.