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🦴 Scientists try out Stone Age tools to understand how they were used
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Scientists try out Stone Age tools to understand how they were used
Researchers from Tokyo Metropolitan University crafted replica Stone Age tools and used them for a range of tasks to see how different activities create traces on the edge. They found that a combination of macroscopic and microscopic traces can tell us how stone edges were used. Their criteria help separate tools used for wood-felling from other activities. In addition, dated stone edges may be used to identify when timber use began for early humans.

X/Twitter finds my activity suspicious. Of multiple accounts. Because I am using VPNs? Because I don't post? Because I am logging in every few months? I haven't even used my delete script on those accounts https://www.youtube.com/watch?v=jB1-z6LbX5w

An analysis of ~65 NYT articles on US anti-trans legislation from the year to February 15, 2024: 66% did not quote a trans person, and 18% had misinformation (Media Matters for America)
https://www.mediamatters.org/new-york-time

Seen but not heard: The New York Times failed to quote trans people in over 60% of 2023 stories on anti-trans legislation
A new report from Media Matters and GLAAD finds that The New York Times excluded the perspectives of trans people from two-thirds of its stories about anti-trans legislation in the year following public criticism for its handling of the topic. Media Matters previously reported that the Times helped fuel a right-wing anti-trans panic in 2022 by platforming anti-trans extremists, painting rising transgender identification as a social contagion, and fearmongering about the costs of transgender acc…

Seahawks HC Mike Macdonald: 'This team needs to take on its own identity' under new coaching staff https://www.nfl.com/news/seahawks-hc-mike-macdonald-this-team-needs-to-take-on-its-own-identity-under-new-c…

Seahawks HC Mike Macdonald: 'This team needs to take on its own identity' under new coaching staff
Speaking with NFL Network Insider Tom Pelissero at the Annual League Meeting on Saturday, new Seahawks head coach Mike Macdonald spoke on what he's learned from following Pete Carroll, forging a new team identity and Geno Smith's embodiment of his new 'vision' for Seattle.

Galaxy cluster virial-shock sources in eROSITA catalogs
Gideon Ilani, Kuan-Chou Hou, Gil Nadler, Uri Keshet
https://arxiv.org/abs/2402.17822 https://

Galaxy cluster virial-shock sources in eROSITA catalogs
Following the recent identification of discrete ROSAT and radio sources associated with the virial shocks of MCXC clusters and groups, we examine if the early eROSITA-DE data release (EDR) shows virial-shock X-ray sources within its $140$ deg$^2$ field. EDR catalog sources are stacked and radially binned around EDR catalog clusters and groups. The properties of the excess virial-shock sources are inferred statistically by comparing the virial-shock region to the field. An excess of X-ray source…

President Joe Biden to visit Syracuse following $6.1 billion Micron grant news (Emma Misiaszek/WSTM)
https://cnycentral.com/news/local/president-joe-biden-to-visit-syracuse-following-61-billion-micron-grant-news-administration-chips-and-science-act-clay-new-york-mega-fab-site-chip-fabrication
http://www.memeorandum.com/240422/p69#a240422p69

I've been reading "On Green” (https://joecarlsmith.com/2024/03/21/on-green) and its following article, “On Attunement” with some interest today. I am uninterested in the ways he is focused on “AGI”, but that might actually be part of what he's saying and missing.
They talk about the philosophy of green in the "magic the gathering" sense, which has five core modes of things, and being a game, designed to balance. It's an attractive system and not without merit as a philosophical labeling system. In short: white, moral; blue, knowledge and rationality; red, passion and desire; black, power and achievement. And green. Green is the subject they can't identify clearly.
I don't think they really understand green. (They come from a very rationalist place, and that's not a good mode to understand Green)
Green is the domain of systems thinking and of ecology. It's one of flexible boundaries and hierarchies that vanish when you look at them for long. They talk about philosophical agents and try to fit a green philosophical stance into that framework, but it misses: the very idea of a self is nebulous in a green philosophy. Yes, it obviously exists, we are all separate from each other. But also we are inseparable from each other. Green is a philosophy of relationality and multiple perspectives and ever shifting viewpoints. It's not just yin, passive, permissive, but holistic. It's not that it lets the Other in, it's that it actively is in relation with the Other. The other is the self, the self is the other.
The essays also label green as conservative, and this is not quite true. It is not about being slow or regressive or traditional, but about being whole. They can't quite see that green's willingness to accept death and pain as things that happen and also its strong preservationist stance are not opposed to each other. It seems incoherent, but it's not: death and pain are things that happen to living parts of an ecosystem. They matter, but so too does the whole matter. Where so many blue rationalists see statistical and demographic counts of deaths and "sentient beings harmed”, green sees a whole ecosystem where some of that is deeply natural. It's unnatural, ecosystem-harming deaths that are disasters in the green philosophy. Wholesale extinctions. Protracted, painful deaths, as much for the wound they cause outside the individual as the individual suffering as well. But we all come to an end, and to change that wholesale would end so many kinds of relationship, so many things.
Green revels in the illegible, the incomplete, and the connected. It's easy to be green-blind, to ignore the subtle systemic effects. So many of us want simple cause and effect, rather than action and plurality of reactions.
Green's ability to embrace the illegible lets it deal with Red chaos; its resilience tempers red passion. It can ally with White philosophies into a pastoral, conservative, moralistic framework. It ends up at odds with the rationalist Blue and the power-hungry Black, because they drive disequilibrium, but more than just transition to new stable ecologies, they drive systems permanently out of stability, destroying relationships in their path. When confronted with this, they will deny it because the objects are still there. Preserved. Catalogued. Legible and accounted for. Perhaps used instrumentally. Perhaps wrecked for some "greater purpose” but only acknowledged as objects. The relationships between things remain illegible.

This https://arxiv.org/abs/2311.08142 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Intermediate long wave equation in negative Sobolev spaces
We study the intermediate long wave equation (ILW) in negative Sobolev spaces. In particular, despite the lack of scaling invariance, we identify the regularity $s = -\frac 12$ as the critical regularity for ILW with any depth parameter, by establishing the following two results. (i) By viewing ILW as a perturbation of the Benjamin-Ono equation (BO) and exploiting the complete integrability of BO, we establish a global-in-time a priori bound on the $H^s$-norm of a solution to ILW for $ - \frac …

Motion Planning for Identification of Linear Classifiers
Aneesh Raghavan, Karl Henrik Johansson
https://arxiv.org/abs/2403.15687 https://

Motion Planning for Identification of Linear Classifiers
A given region in 2-D Euclidean space is divided by a unknown linear classifier in to two sets each carrying a label. The objective of an agent with known dynamics traversing the region is to identify the true classifier while paying a control cost across its trajectory. We consider two scenarios: (i) the agent is able to measure the true label perfectly; (ii) the observed label is the true label multiplied by noise. We present the following: (i) the classifier identification problem formulated…

Motion Planning for Identification of Linear Classifiers
Aneesh Raghavan, Karl Henrik Johansson
https://arxiv.org/abs/2403.15687 https://

Motion Planning for Identification of Linear Classifiers
A given region in 2-D Euclidean space is divided by a unknown linear classifier in to two sets each carrying a label. The objective of an agent with known dynamics traversing the region is to identify the true classifier while paying a control cost across its trajectory. We consider two scenarios: (i) the agent is able to measure the true label perfectly; (ii) the observed label is the true label multiplied by noise. We present the following: (i) the classifier identification problem formulated…