Shawn Tully

Shawn Tully

Shawn Tully is a senior editor-at-large at Fortune.

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Digital generated image of melting bitcoin sign made out of ice laying down on blue background in puddle.

PepsiCo CFO: No way we’d park cash in Bitcoin

WASHINGTON, DC – OCTOBER 04: U.S. President Joe Biden delivers remarks about the need for Congress to raise the debt limit in the State Dining Room at the White House on October 04, 2021 in Washington, DC. Biden was critical of Senate Republicans and their leader Sen. Mitch McConnell (R-KY) after they blocked efforts by Democrats to raise the borrowing limit, potentially destabilizing markets and threatening to default the federal government. (Photo by Chip Somodevilla/Getty Images)

The Biden agenda would swell U.S. debt levels past ‘heavy borrowing’ and towards ‘basket case’ territory

Bubble in the finance world

Is this the sound of a stock market bubble popping?

Karen Lynch CEO of CVS Health.

CVS Health is about to turn hundreds of its drugstores into health care super-clinics

AHUACHAPAN, EL SALVADOR – 2021/06/16: A danger sign at a geyser where a volcano releases energy.<br />
Salvadoran President Nayib Bukele has announced that the government will expand its geothermal energy infrastructure to begin bitcoin mining projects. (Photo by Camilo Freedman/SOPA Images/LightRocket via Getty Images)

Scalding water and steam send Bitcoin soaring—but analysts say be wary of El Salvador’s ‘stunt’

Illuminated mining rigs operate inside racks at the CryptoUniverse cryptocurrency mining farm in Nadvoitsy, Russia, on Thursday, March 18, 2021. The rise of Bitcoin and other cryptocurrencies has prompted the greatest push yet among central banks to develop their own digital currencies. Photographer: Andrey Rudakov/Bloomberg via Getty Images

Bitcoin has another major pollution problem brewing

As Tesla stock surges, it’s now worth as much as the next six biggest carmakers

Clarisse Monahan.

This ‘financial astrologer’ sees the future of Bitcoin—and says it could go to zero

A partnership in Chicago aims to prevent major blackouts like the one that hit New Orleans earlier this week in the wake of Hurricane Ida.

A new technology being used in Chicago could protect cities from blackouts and cyberattacks

If interest rates rise, the Fed could get squeezed.

There’s a huge risk to the U.S. economy right now—and almost no one is paying attention

3D Illustration, inside a Bitcoin mine symbolizing the Bitcoin mining process.

As Bitcoin soars to near $50,000, Elon Musk’s profit jumps by 250%

Tully-bitcoin-mining

Bitcoin mining comes to Pennsylvania coal country—and raises tough questions

UKRAINE – 2021/02/21: In this photo illustration, hands are seen counting US 100 dollar bills.

Cathie Wood’s ARK Innovation ETF looks like the Nasdaq in 2000, only more overvalued

AHUACHAPAN, EL SALVADOR – 2021/06/16: A view of a geothermal energy extraction facility.<br />
Salvadoran President Nayib Bukele has announced that the government will expand its geothermal energy infrastructure to begin bitcoin mining projects. (Photo by Camilo Freedman/SOPA Images/LightRocket via Getty Images)

If Bitcoin hits $500,000, mining it will spew more CO2 than Mexico or Brazil

Elon Musk, chief executive officer of Tesla Inc., arrives at court during the SolarCity trial in Wilmington, Delaware, U.S., on Tuesday, July 13, 2021. Musk was cool but combative as he testified in a Delaware courtroom that Tesla’s more than $2 billion acquisition of SolarCity in 2016 wasn’t a bailout of the struggling solar provider. Photographer: Al Drago/Bloomberg via Getty Images

Tesla’s Bitcoin bet is back in the black—big time