crm416

Joined 14 years ago

Karma
463
Submissions
56
Member since
Jun 16
Staff software engineer at Spring Discovery (https://springdiscovery.com/), leading the development of a software platform at the intersection of computation and biology.

Email: [email protected] Twitter: @charliermarsh Site: https://www.crmarsh.com/

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Recent submissions

Comment · 5 years ago
We've been using PyO3 and Maturin at Spring for a while now, and happily. The smooth Python interop means we can call out to Rust without much pain for performance-critical codepaths. But the other side-effect is that we can use Rust across the org more broadly, even when Python interop isn't a consideration -- e.g., for isolated services, or applications that need to compile to Windows, or whatever else -- since we're building up the cultural knowledge and shared libraries to do so.
Comment · 10 years ago
Thanks for the thoughtful feedback--I think these are very fair comments.

When we first designed Jasper, it was just for us to hack around with, so regex matching, the priority system, the single-instance configuration, etc.--these all made a lot of sense for our use case (and the use cases that we foresaw w/r/t casual hackers). Our goal was just to make things simple and accessible (hence our focus on documentation). Since our initial release, Jan Holthuis has taken over much of the development, and he's put a big emphasis on abstracting out the STT and TSS libraries (as you mentioned) and improving the design more generally. My hope is that Jasper will continue to grow and mature, and that the suggestions and possibilities you mention become realities.

Comment · 11 years ago
Comment · 11 years ago
I took the course this semester (and loved it--hope the materials can be helpful to all).

We had one assignment that focused on achieving consensus in the face of adversarial nodes, similar to the systems used in Stellar and Ripple, so those were included in the course, to a degree.

Comment · 11 years ago
Can't speak highly enough of the Khan Academy internship experience--I interned with Kasra last summer and it was a pretty incredible few months. From the team to the mission to the culture to the work itself, it's A+ all around. If you're looking for a software internship, I highly recommend applying.

(By the way: the Khan Academy iPad app actually shipped _today_. Congrats to everyone back at Khan HQ!)

Comment · 11 years ago
Comment · 11 years ago
Comment · 11 years ago
"I think the technology used to implement the Bitcoin payment system is fascinating - public ledgers and crypto and block chains will all be game changers. Bitcoins themselves? More of a necessary component to creating a new financial system."

Another article that seems to suggest that the blockchain has value with Bitcoin. I've heard others (pmarca in particular) promote this view, and I think it's far from validated. At the moment, BTC is the most important incentive to mine, and mining is the most important factor in establishing the blockchain's security.

It's true that, in the future, we might be able to come up with other incentive structures to encourage mining (the Bitmessage protocol is one such example). But if we want one blockchain, and we want it to be as secure as possible, how could we ever come up with an incentive that is as universally desirable and infinite as money?

Comment · 11 years ago
What I worry about is the effect that market price can have on the security of the network (via global hash rate).

The system will reach equilibrium when the revenue generated by mining is equal to the amount spent on mining. When the value of BTC goes down, mining generates proportionally less revenue (if miners are valuing BTC at market price, which they may not be), and the global hash rate will drop.

Imagine if the price plummeted, the hash rate dropped, and someone launched an attack on the network. At that point, consumer confidence in Bitcoin would possibly never recover, and its long-term viability would be severely damaged.

Comment · 11 years ago
Comment · 12 years ago
I can testify that there are plenty of remote folk at Khan Academy--can think of six full-time remote devs off the top of my head (in a sub-40 person dev team). It's a very remote-friendly culture.

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