andrewjl

Joined 15 years ago

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Member since

Sep 29

Trying to get the basics right.

"Just so, I maintain, does a given undivided portion of experience, taken in one context of associates, play the part of a knower, of a state of mind, of 'consciousness'; while in a different context the same undivided bit of experience plays the part of a thing known, of an objective 'content.' In a word, in one group it figures as a thought, in another group as a thing. And, since it can figure in both groups simultaneously we have every right to speak of it as subjective and objective, both at once." - William James, Essays in Radical Empiricism

“Civilization advances by extending the number of important operations which we can perform without thinking about them.” - A. N. Whitehead, An Introduction to Mathematics

"Das Ende der Melodie ist nicht deren Ziel" - Der Wanderer und sein Schatten

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Comment · 1 year ago

As long as the Obj-C and Swift are in separate source or binary targets, SPM supports them being in the same package.

There was a Swift Evolution proposal at one point to go all the way and bring in support for mixed Obj-C and Swift targets [1] but it was returned for revision. It talks about the multiple target workarounds:

> Distribute binary frameworks via binary targets. Drawbacks include that the package will be less portable as it can only support platforms that the binaries support, binary dependencies are only available on Apple platforms, customers cannot view or easily debug the source in their project workspace, and tooling is required to generate the binaries for release.

> Separate a target’s implementation into sub-targets based on language type, adding dependencies where necessary. For example, a target Foo may have Swift-only sources that can call into an underlying target FooObjc that contains Clang-only sources. Drawbacks include needing to depend on the public API surfaces between the targets, increasing the complexity of the package’s manifest and organization for both maintainers and clients, and preventing package developers from incrementally migrating internal implementation from one language to another (e.g. Objective-C to Swift) since there is still a separation across targets based on language.

The upshot is that SPM has a better interoperability story with Swift and C++ [2] and maybe that can serve as a foundation for getting to the same level of interop for Obj-C.

[1]: https://github.com/swiftlang/swift-evolution/blob/main/propo...

[2]: https://www.swift.org/documentation/cxx-interop/

Comment · 1 year ago

On a technical level are there big differences between Pix and FedNow[0]? Besides this upcoming installment feature.

[0] https://www.frbservices.org/financial-services/fednow

Comment · 1 year ago

TIL autism has been linked to environmental factors like metabolic syndrome during the first trimester of pregnancy, air pollution, and pesticide exposure. Some of these frequently co-occur with specific gene mutations. [1][2] There's a good argument that everyone has more exposure to everything on that list nowadays. Increased diagnoses would then make a lot of sense.

Teasing out the specifics of how much each of these contribute and separating that out from possible confounders like greater screening and others does seem like a tough study to design.

[1] https://www.medicalnewstoday.com/articles/environmental-auti...

[2] https://www.niehs.nih.gov/health/topics/conditions/autism

Comment · 1 year ago

> How do you suppose we do that in the US?

Exempt or lighten planning requirements for affordable housing construction. California is going in this direction now.

There are other levers like subsidized financing for developers building homes targeting a certain price range as well as favorable tax treatment of those profits.

A lot of these have would probably have some bipartisan support.

Comment · 2 years ago

Is there a plausible experiment that can falsify dark matter? The study here used observational data and it didn't do that. (Deducing that non-existence of dark matter is plausible given what else was observed isn't the same thing.)

> “There are several papers that question the existence of dark matter, but mine is the first one, to my knowledge, that eliminates its cosmological existence while being consistent with key cosmological observations that we have had time to confirm,” Gupta confidently concludes.

Comment · 2 years ago

https://www.outsourcedpharma.com/doc/an-overview-of-the-fda-...

Comment · 2 years ago

One colorful anecdote from that period.

> In the United Kingdom, he was called "Slater the Traitor" and "Sam the Slate" because he brought British textile technology to the United States, modifying it for American use. He memorized the textile factory machinery designs as an apprentice to a pioneer in the British industry before migrating to the U.S. at the age of 21.