This means that, under NIPA, business computer purchases count as saving and investment, but spending to train workers to use the new computers counts as current consumption rather than investment.
Under NIPA, business computer purchases count as saving and investment but training is consumption.
I think that Larry is trying to reach a larger audience with his book, and to do so, he has to explain why under the influence of commerce, cyberspace is becoming highly regulable for those who do not participate in that commerce, and why the regulation that commerce imposes on those who voluntarily join into it should be a bad thing.