So many problems with the headline and details.

"24 hours" figure seems extrapolated from "All day use". No where that I could find did Intel say "24 hours". Just that slide that says "all day use".

"Unlimited battery life" is based on the assumption that you could recharge your MacBook using ambient light. There was a demo supposedly showing a new processor running off a lightbulb/ambient light. A macbook, however, has this thing called a monitor that would also have to be powered.