1.9% for sellers seems kind of insane?? That's like not much better than credit cards!
Blockchain is obviously still a generally stupid medium for transactions AFAIK, but it makes a lot more sense once you realize how hilariously awful the US payments, etc infra is. Imagine paying 3% for any transaction at any merchant ever
An incumbent enters and offers free payments, before they even have nontrivial market share of merchant payments they raise to 2%
*entrant not incumbent
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Imagine a world in which large % of El Salvador prices are actually posted in BTC. Tradable goods would fluctuate between stupid cheap or expensive depending on BTC prices
Suppose you build a car in US and want to sell it for $30k USD in El Salvador. You set the price at 1 BTC. Your offer effectively functions as an outstanding BTC put. At any point in time, buyers can "sell" you one BTC for a car. BTC goes down and you are out a lot of cars!
This. On the bright side: while intl students face a strong language barrier, I think they mistakenly assume there is also an insurmountable _culture_ and institutional details barrier, which I think is a bit smaller than it first seems.
I've found intl students tend to shy away from subfields which are very institutional-details heavy, and towards technical subjects not requiring much details. I think partly because they assume American/Western students know all the institutional details
Details like, how does the US healthcare/tax/electricity/financial etc systems work. The advantage here is actually IMO fairly small. The median international student knows ~0 about these things, but so does the median American college graduate!
Here's a thread I wrote a about the paper a while back. The new version has some new results on revenue, some more numerical simulations, and is slightly streamlined, but otherwise is pretty similar
There is a surprisingly simple "hack" to doing well in college classes, even fairly hard ones. Say you want to do well in intermediate physics, chemistry, math, etc. Just find every textbook written about your subject, read and do/figure out the answers to all the questions
This works in my experience because it's pretty rare for faculty to come up with test questions literally out of nowhere: often they're taken from other books. Even if they are "new" someone's often come up with the same thing before and it's in a book somewhere
There are realistically only so many good test questions one can ask about intermediate physics, and it's entirely possible (though tedious) to get through most of them
Automated market makers seem like a good tool for videogame economies. Say there is an in-game resource called, ruby, or something. NPC shopkeepers could deterministically set a price for rubies based on current inventory: lower inventory, higher prices
A few benefits of this:
- The NPC shopkeeper actually keeps a book and makes a profit, which could enable some interesting in-game behaviors (let's bankrupt the shopkeeper!)
- For resources that have stable/quickly mean-reverting in-game value the shopkeeper basically steadily profits from bid-ask spreads, like stablecoin pair market making