Fizz, Fame & Fortune: Poppi’s Billion-Dollar Journey with Co-Founder Allison Ellsworth

Poppi Co-Founder Allison Ellsworth shares how the prebiotic soda went from Shark Tank to a $1.95B PepsiCo deal—gut health, grit, and big brand moves.
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Can NYC Finally Cool Its Subway?
Why is the NYC subway platform so hot? One rider built his own sensor network to find out. We explore the geothermal fix the MTA is piloting right now.
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