And from the standpoint of Wall Street speculators, it is a bouncing ball in a roulette wheel: a tech-bubble casino play.

In early 2018, Tesla’s board of directors and shareholders approved a pay package for CEO Elon Musk granting him 12 tranches of stock options, each equal to about 1% of the company’s total equity, valued fully at some $55 billion. 

The first tranche would vest if Tesla’s market capitalisation surpassed $100 billion, and each successive tranche would vest when it rose another $50 billion.

That compensation package is now in the courts, where the Delaware Chancery has found that the process by which it was approved failed to meet the arms-length standard required of an executive who is also a shareholder with effective control over the company. 

Even so, Musk will probably prevail once all the legal wrangling is done. After all, the board is tame, and most Tesla shares are held by diehard Musk fans.

As a result, Musk holds about 22% of Tesla, instead of the 10% stake that he had before the pay package. 

Among his other holdings, SpaceX alone shows great promise. Nobody would be surprised if X (formerly Twitter), The Boring Company, and the others all went to zero. 

Musk may be worth $160 billion on paper, but his $120 billion stake in Tesla is the only component of his wealth that does not depend on some idiosyncratic buyer showing up with the right valuation at the right time.

Before the pay package, Musk was a run-of-the-mill Silicon Valley billionaire, though perhaps the most consequential one. 

He is clearly an effective fundraiser, cheerleader, and occasional coach for engineers working on battery technologies, electric vehicles, and rocket science. 

Without him, those technologies would not have been pushed forward as much as they have. Though he is notorious for over-promising, Musk over-delivered in these cases. 

When the history of humanity’s effort to tackle climate change is written, the Musk of the 2010s will surely be one of the biggest heroes. 

During that decade, Musk’s wealth was “only” around $9 billion. It rose to $20 billion or so as of mid-2019, and then to a peak of $340 billion in November 2021, before falling back to $170 billion. 

He has moved from electric-power trains, charger networks, and batteries to social media, artificial intelligence, fully autonomous driving, humaniform Turing-class robots, robotaxis, and — most recently — using all of the chips in idle Tesla vehicles as a distributed AI supercomputer. 

Yet while the over-promising has continued, the over-delivering has not. The fundraiser, cheerleader, and coach for teams developing real technologies has become a meme-stock carnival barker.

To be sure, that, too, can be a lucrative business. But it is a profoundly different business from building a profitable enterprise that will attract long-term shareholders. 

On Tesla’s most recent earnings call, Musk said: “We should be thought of as an AI or robotics company. If you value Tesla as just like an auto company, you just have to — fundamentally, it’s just the wrong framework … the way to think of Tesla is almost entirely in terms of solving autonomy and being able to turn on that autonomy for a gigantic fleet. 

"And I think it might be the biggest asset value appreciation history when that day happens when you can do unsupervised full self-driving.” 

But wait: “automotive revenues” accounted for over 80% of Tesla’s first-quarter sales. 

While car manufacturing does have substantial economies of scale, the value proposition does not come close to the level of infotech, where you can “write once and run everywhere” at zero marginal cost. 

Moreover, Tesla already has a price-to-earnings ratio of 46.8, compared to just 12.5 for the Ford Motor Company, which has been a profitable car-making business for most of the past century.

For all the current Tesla shareholders planning to offload their holdings in the next couple of years, everything hinges on the company succeeding as a meme stock, and Musk is diligently working toward that goal. 

Since there are virtually no long-term Tesla shareholders, the market does not particularly care that the company lacks a chief executive who is trying to build it into an enduring profit-making organisation.

But for Tesla’s employees, suppliers, and customers, the company’s success as a productive organisation matters very much. 

And it is in the interest of America and the world that Tesla remains a technology-generating enterprise at the forefront of the net-zero transition.

Does anyone seriously think that the Musk of today is the right CEO to manage the Tesla we need? I no longer do. But I’m not holding my breath that the institutions of modern capitalism reach the same conclusion and respond accordingly.

• J. Bradford DeLong, Professor of Economics at the University of California, Berkeley.