It's not clear to me whether or not that would make a big difference. I lean no, because my default assumption is that governments are really bad at spending money, but I could see it going either way.
Of course, there are also poor people outside California, and there's no particular reason to focus on the ones inside.
(I also note that 100 billionaires own considerably more than $100bn between them, but that's a minor nitpick.)
I'd also expect the total wealth among the 100 billionaires to be well over 100 billion, considering just Ellison + Zuckerberg + Page together have over 100 billion.
In a similar vein to these two figures, the richest 62 people in the world hold as much money as the poorest 50% of the world: https://www.theguardian.com/business/2016/jan/18/richest-62-... . As a direct consequence, if these 62 people gave all of their money (except for a couple million each) away immediately, 50% of the world would have twice as much money.
(edit: I'm not suggesting that billionaires instantly give all their money away as a direct cash transfer. Just providing a counterargument to "billionaires don't have that much power")
But we're not talking about the world, we're talking about spreading it over the citizens of California in particular, which have one of the highest incomes in the world.
If you want to talk about it in the scope the entire world, divide their wealth by 7 billion instead of 40 million to see what it gets everyone. Also, almost nobody in the US is for taxing the rich in the US to just give to citizens of other countries.
Yes, you'll see them spend $3K more per student. You won't actually see any improvements in the students, though.
http://washington.cbslocal.com/2014/04/07/study-no-link-betw...
The public schools have many problems; lack of money is not one of them. Having any idea what to do with it is.
It's worth noting that Maciej forgot that the tech barons he hates actually tried this: https://www.washingtonpost.com/opinions/how-newark-schools-p...
well if you put it like that, the world ...