Only nine meals to chaos.

I wonder how many meals a global outage would add up to. It raises an interesting point (covered in the video you posted) in terms of deployment of such a cyber-weapon - unless there was a way to turn off a state's internet without it turning off yours, then it's similar to the nuclear stand-off - which is contained by the threat of mutual self-destruction. No entrenched power is gonna want to flirt with anarchy.

The difference from a nuclear attack is that a cyber-attack doesn't cause a visual explosion & a pile of charred bodies - instead it's covered in a veil of secrecy, so it may not be immediately obvious who launched it. Or it might be like Covid, where everyone knows who launched it, but it's impolitic to say.

Meanwhile, there's still a lot of incremental wiggle room between 'the big one' & smaller, targeted offensives.