84 karma · joined October 23, 2009
> We have thus arrived at the intriguing result that wealth averaged over many systems grows at 5% per round, but wealth averaged in one system over a long time shrinks at about 5% per round.
Wealth averaged over many systems doesn’t grow by 5%. It shrinks just like the average. The EV calculation is just wrong. For any finite starting wealth between the players and the bank, there is a number of iterations where the EV turns negative.
If you say, well let the starting wealth be infinite, I say, okay? If you have infinite dollars there are a lot of tricks for making infinite more dollars. It doesn’t work in the real world.
Not if the bank starts with $0. 0 is just as valid a bound as a trillion. You can’t calculate the EV without knowing how much the bank has, and once you know that, you realize the naive calculation for EV is wrong.
In SPP, EV approaches infinity as the bank's resources approach infinity. Put bounds on the bank's resources, and you find that even with trillions of dollars your EV is less than $50.
Here, not only are we assuming that the bank's resources are infinite, we're also assuming that the population is large enough that there are always enough lucky players to compensate for the unlucky ones. Put bounds on the size of the population, and you see that everyone goes bust in all but a tiny fraction of cases. Put bounds on the bank, and even that tiny fraction can't compensate for all the losers, and EV is negative.
I really don’t see the angle that Uber was doing something fundamentally new, except to the extent that they dramatically lowered the price and a lot more people used the service.
> Costs incurred internally in researching and developing a computer software product are charged to expense until technological feasibility has been established for the product. Once technological feasibility is established, software costs are capitalized until the product is available for general release to customers.
Then later
> The amortization of these costs is included in cost of revenue over the estimated life of the products.
My point is there's plenty of good content people want that's 30-70 years old & they don't feel bad about pirating it. My dad by his principles would never download a new movie; nevertheless he's looking up the songs from his childhood on YouTube. He feels entitled to listen to them whenever and however he wants. I think that's a pretty common attitude toward the older stuff.
It's not just hypothetical. In our family we subscribe to 3 or 4 streaming services, but last year we still had to pay $5 to watch It's a Wonderful Life (1946), a movie that was literally in the public domain for 20 years. A Charlie Brown Christmas (1965) wasn't available at any price, except with ads that stretched its 25-minute runtime to nearly an hour. We pirated that one. I don't think most people would think there was anything wrong with that.
http://lesswrong.com/lw/l0/adaptationexecuters_not_fitnessma...
The one side thinks "how rude of the student to walk in and out of lectures like that!" and the other side thinks "what's the big deal? Just ignore it!" and from there they side with the professor or the student, respectively.
Does this gel with your personal experiences? Is there anyone who sided with the professor but does not find student movement distracting? Or anyone who sided with the student but can't stand it?
[1] http://lesswrong.com/lw/dr/generalizing_from_one_example/