jwatte

86 ms·

871.
by jwatte 15y ago
The sampling theorem is for static signals and perfect filters. Turns out, music isn't static. Once you have transients in the program, you need higher bandwidth or you will end up with phasing effects (time domain aliasing.) This is plain
872.
by jwatte 15y ago
Unit tests, acceptance tests, and integration tests are different things. Unit tests test that the implementation behaves as intended, and generally grope around private internals. These change when implementation changes. Acceptance tests
873.
by jwatte 15y ago
How do these disasters happen? I have to assume that companies do want to keep customers, and that they use their own service...
874.
What loading a home page should not look like(enchantedage.com)
4 points by jwatte 15y ago|2 comments
875.
by jwatte 15y ago
I'm sure they saved money in the short run by going with the cheapest option each time they tried to manage their documentation the last time around. On the other hand -- at the time, they didn't know which parts would be valuable, and whic
876.
by jwatte 15y ago
S3 gives you multi-host, multi-region redundancy. Putting it all in one box is asking for trouble. What if the raid controller grows a bug and corrupts on write? It's happened. What if there's a fire in the building that has both your serve
877.
by jwatte 15y ago
The people who can’t finish after double the allotted time exist in the US, too. Except here they bill the government $100+/hour to not finish FBI case file systems or air traffic control revamps. There exists good developers in India, but
878.
by jwatte 15y ago
Cost of asphalt is going up significantly! Even with electric cars, cost of oil may end up making track based systems more effective.Also, what is the maintenance cost of a road. Vs a track? And what about reclaiming all the land on the gro
879.
by jwatte 15y ago
I think they have it backwards. What if Chrome is GoogleBot? You get quality measurement on pages based on user behavior on the page. Crowdsourcing beats crawling!
880.
by jwatte 15y ago
Quote: " Scheme's macros have no comparison in any other language." I argue that Erlang parse transforms are at least as powerful. Interesting that he mentions Erlang, but doesn't mention that! (Erlang probably isn't ideal as an /extension/
881.
by jwatte 15y ago
So it doesn't run the general x64 system architecture? Then how is this different from GPGPU? I thought NVIDIA broke a teraflop on a dual slot a while back (dunno if it was single GPU.) Slot based coprocessors have always been a very nich
882.
by jwatte 15y ago
No, i am referring to how vesting is actually expressed (at least in some grants I've seen). Another way to say it: "like it or not, unvested shares are re-negotiable." Get in early and vest as much as you can, if that's important!
883.
by jwatte 15y ago
The typical option agreement says that the stock you may purchase is subject to a right of repurchase by the company, and that right (by the company) lapses over time. So, I imagine that is totally negotiable until such time that that right
884.
by jwatte 15y ago
Aren't diffusion values an implicit representation of pre-calculated closest path pathfinding? Calculating diffusion incrementally is a way to update the graph over time with a known incremental cost. But it all is just a variant of Dijksta
885.
by jwatte 15y ago
There's a whole class of interesting, valuable challenges that you'll never get close to working on when you're alone and bootstrapping. Building value at a larger scale, as part of a larger team, can be equally fulfilling, as long as the t
886.
by jwatte 15y ago
So, here's the thing: Early effort is more expensive than later effort, because if the idea doesn't survive, all that effort has infinite cost/benefit ratio! Before you have any value, what are your tests supposed to be defending? Once you
887.
by jwatte 15y ago
The real point is: Proving stage and scaling stage are fundamentally different. Not making the transition at the right time (or at all) has probably killed as many startups as over-engineering in the proving stage.
888.
by jwatte 15y ago
I work with 40,000+ unit tests. I deploy across a live cluster with a single command. My co-workers and I deploy to production dozens of times a day. Every new hire gets a VM image sandbox to develop in. We still have infrastructure debt. T
889.
by jwatte 15y ago
Never. Ever. Talk to the press! Unless you get all the questions in advance.
890.
by jwatte 15y ago
I hope it has ECC RAM, as opposed to most competitors I've seen before (such as the atom based boxes)
891.
by jwatte 15y ago
I think the main thing missing with Node is best practices. We use jslint with node. And we run tests in parallel, to flush out any dependencies. We had to wrap callbacks in a sequencing library to get good stack traces, though. Node.js als
892.
by jwatte 15y ago
His point is that Amazon hires sysadmins, not him. However, that seems based on a very narrow definition or understanding of what a "sysadmin" is or does for the business. I identify "sysadmin" with "operations" but perhaps others see it di
893.
by jwatte 15y ago
It's not clear to me what you think sysadmins do. Who will make sure your provisioned configurations have proper redundancy? Who will move your domain when an availability zone has an outage? Who will work with upstream networks when you're
894.
by jwatte 15y ago
If you're in silicon valley, and want senior/lead engineers who can make a difference, expect to pay >>$10k per month per head for salary, benefits and payroll taxes. Plus give away a chunk of equity. Competition for good people is
895.
by jwatte 15y ago
Somewhat depending on the business. Mining is different from social networks is different from clean tech :-) For software, something like: 1. Salary/Benefits. 2. Marketing/PR/Sales. 3. Rent/Utilities/Facilities. Everything else is likely a
896.
by jwatte 15y ago
First, if your payoff after 10 years is $200k, then perhaps you chose poorly :-) Second, if you know those are the rules, why would it be unfair? Don't do it if you don't want it. Phase out long term capital gains 20% over 5 years, and we'r
897.
by jwatte 15y ago
Saying risk capital worked before a liquid second market existed is like saying food distribution worked before the supermarket. I agree that Wall Street financiers seem to focus too much on using secondary (and tertiary) effects to simply
898.
by jwatte 15y ago
Most of the time: Yes, traditional ORMs are an anti-pattern. If you think you want an ORM, consider an ODB or KVS instead (neither of which are relational).
899.
by jwatte 15y ago
To me, that's not "bootstrapping" -- that's "founders funds." Bootstrapping, to make sense, means that you go cash flow neutral ASAP and then grow the business organically.
900.
by jwatte 15y ago
X86_64 is also bizarre, with mode switch as partt of jump, register aliasing, etc.

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