Person

MacKenzie Sigalos

Lately in print: CNBC, latest byline September 30, 2026.

Public record only: name, outlet, headline, and date.

Lately in print

Pieces under MacKenzie Sigalos’s byline, or shows they host, each opened and checked for the name and date on the page itself.

CNBC · September 30, 2026
Google rolls out Gemini 4 Argon, its most advanced AI model (opens CNBC)

In the archive

Bitcoin & Mining
Michel Rauchs Helps Count Bitcoin's Watts, and Cambridge Recounts Them
Michel Rauchs co-designed Cambridge's Bitcoin electricity index, launched July 2, 2019, and a 2023 revision cut its 2021 estimate from 104.9 to 89.0 terawatt-hours.