It was right there with flying cars and domed cities on the moon. That was part of the whole Disneyworld/OMNI Magazine promise about life in the year 2000.
And I’m guessing you wouldn’t substitute school entirely for Khan Academy.
No. wouldn’t. And the kids themselves wean themselves off the kids version at about age 6 suddenly by whatever interests them - seems all:zero for all the kids I’m aware of using the kids version. But the greatest impact in my opinion is understanding a structured lesson is a skill they mastered before formal schooling which puts them ahead. Not to mention early use of english - not our mother tongue.