DavidSJ

74 ms·

811.
by DavidSJ 14y ago
Elasticity of supply and inflation rate are two completely orthogonal concepts. A deflationary currency can still have elastic supply, and an inflationary currency can still have inelastic supply. Elasticity simply refers to whether the sup
812.
by DavidSJ 14y ago
Value is the intersection of supply and demand. Supply may be fixed, but demand is highly volatile.
813.
by DavidSJ 14y ago
In the short term, 90% of bitcoin's value is driven by speculation of future adoption, as you say. If it does become widely adopted, it should be far less volatile than it is today, but it will remain more volatile than well-managed fiat
814.
by DavidSJ 14y ago
It does not imply anything about reversibility. It applies just as well to a liquid asset like bitcoin or stock as to an illiquid asset such as a house. Two people each have 1 BTC. One paid $5 for it, the other paid $10 for it. Their presen
815.
by DavidSJ 14y ago
You're making the sunk cost fallacy. The amount you paid for an asset is irrelevant to its present value, and equally irrelevant to whether and how much of it to sell.
816.
by DavidSJ 14y ago
$1,750 was the price when Buffett wrote that.
817.
by DavidSJ 14y ago
Somehow it offends one's dignity less to be ousted by a robot.
818.
by DavidSJ 14y ago
Even for a wild guess I think you're off by at least an order of magnitude if you don't take into account velocity (typical dollar is spent four times per year; edit: and bitcoin, as a digital currency, is likely to have higher velocity) an
819.
by DavidSJ 14y ago
A few minor issues: a b is a bit, a B is a byte. A satoshi (not satochi) is 0.00000001 BTC, not 0.000000001 BTC. Not sure where the $6,000/BTC comes from for $80b in annual transactions per 10m BTC, but consider velocity of money. A BTC can
820.
by DavidSJ 14y ago
The difficulty auto-adjusts to keep supply constant, so market forces will drive the cost of mining a bitcoin to just below the value of a bitcoin. Hence, ASICs should have no major long-term effect on the difficulty of taking over the netw
821.
by DavidSJ 14y ago
The asset's capacity to facilitate economic trade causes individuals to store it so that they can participate in such exchanges when opportunities present themselves. The sane price is the total amount of such wealth that individuals are st
822.
by DavidSJ 14y ago
He was suggesting the Vatican get out of the bank business, not enter it.
823.
SpaceX Software AMA(reddit.com)
3 points by DavidSJ 14y ago|0 comments
824.
by DavidSJ 14y ago
When Netflix owns the content, their marginal costs per subscriber are near zero -- essentially just bandwidth and compute fees.
825.
by DavidSJ 14y ago
Certainty about the wrong values has caused its share of bad values prevailing.
826.
by DavidSJ 14y ago
Try the NASA TV feed.
827.
T-1 hour for first SpaceX ISS resupply(spacex.com)
3 points by DavidSJ 14y ago|0 comments
828.
by DavidSJ 14y ago
The important thing is that Bitcoin doesn't [inflate]. Being convertible with other currencies means its value can only rise Value is a function of supply and demand, not just supply. The value of a bitcoin can fall, as it has done many
829.
by DavidSJ 14y ago
Yes, I'm very aware of truancy laws. Perhaps I should have said supposed beneficiaries.
830.
by DavidSJ 14y ago
Only in education is it controversial to give some semblance of power to the supposed customers.
831.
On the Feasibility of Side-Channel Attacks with Brain-Computer Interfaces(usenix.org)
2 points by DavidSJ 14y ago|0 comments
832.
by DavidSJ 14y ago
Yes.
833.
by DavidSJ 14y ago
Err, grep uses regular expressions.
834.
by DavidSJ 14y ago
[1] Thinking of embedded systems developers creating code for, say, automotive entertainment systems, or control code for scientific or medical hardware. Don't they have log files to read?
835.
by DavidSJ 14y ago
Real world businesses require the integration of many knowledge domains in order to succeed. The specialized niches where genetic algorithms excel are at best a small subset.
836.
by DavidSJ 14y ago
Unfortunately, to do a gravitational slingshot, you need a body other than the one relative to which you want to accelerate. So you can use Mars to accelerate relative to the Sun, but not relative to Mars. This means if you're already in
837.
by DavidSJ 14y ago
Astronauts spend 6+ months at a time on the space station, without protection from the Earth's atmosphere. I'm told the magnetosphere is only helpful against solar flares, not cosmic rays, and you can shield against solar flares with a stor
838.
by DavidSJ 14y ago
They tested it as much as they could. You can't simulate Martian gravity and the full Martian atmosphere on Earth.
839.
NASA TV feed of 10:31 pm PDT Curiosity landing(nasa.gov)
267 points by DavidSJ 14y ago|94 comments
840.
by DavidSJ 14y ago
rand() is not cryptographically secure. You should not rely on it in security-sensitive situations. http://perldoc.perl.org/functions/rand.html

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