"It is run frugally and transparently" is a dubious claim, at least according to claims made on NRKs Folkeopplysningen (a show like Penn and Teller: Bullshit, just better). The fund spends a lot on being actively managed, one manager received ~$60 million in bonuses in 2010. However, they won't reply when people ask if bonuses are actually financially beneficial. https://tv.nrk.no/serie/folkeopplysningen/KMTE50009215…
$60m isn't exactly the real cost to the government, though? Assuming this asset manager is a Norwegian resident, he'll pay a ton of tax (income or corporate tax, VAT, stamp duty on property purchases, capital gains, etc etc) on that money, and eventually given enough time, most will just flow back to the government. The house always wins.. Also, it depends on how much he brings in. For example, there are US based ass…
It is impossible, at least continuously. Nobody has ever managed to do that. You'd be lucky if you could beat the market by a few points on average over a 20 years time period. Compensation well for good performance does not make sense when you aren't penalized for losses.