Lifeboat Foundation

Michael Levin is a developmental and synthetic biologist at Tufts University, where he is the Vannevar Bush Distinguished Professor of biology. He is a director of the Allen Discovery Center, director at the Tufts Center for Regenerative and Developmental Biology, and principal investigator at the Levin Lab.

0:00 intro.
1:38 bioelectricity and developmental biology.
7:56 memory and conditioning in GRNs.
11:50 is there a privileged cognitive substrate?
13:55 Godel type limits.
15:45 multi-scale competency architecture.
25:12 intelligence.
27:00 conceptual framework for cognition.
29:45 does cognition bottom out somewhere?
36:47 synthetic cognition.
39:23 sci-fi that captures this well.
45:16 consciousness, hard problem, and the consciousness of development.
51:09 where does the self come from?
54:06 how do different emergent levels interact.
56:50 top-down causality.
1:02:28 where do goals come from?
1:07:06 balancing conceptual and empirical work.

Continue reading “Michael Levin on the foundations of cognition | Thing in itself w/ Ashar Khan” »

Humans managed to alter an asteroid’s path through space.

NASA’s Double Asteroid Redirection Test (DART) successfully moved an asteroid, space agency officials confirmed on Tuesday, October 11.

It’s unclear what “Blood-Wing” in the top-right corner refers to, but the drone itself is called Red Wing. According to the description, this small aerial vehicle could travel to a weak point behind the enemy lines and perform a “surprise attack” by deploying the robot dog. In one envisioned scenario, this four-legged machine “can be placed on the roof of the enemy to occupy the commanding heights to suppress firepower.”

Mounted on its back is what appears to be a Chinese QBB-97 (designated as Type 95 LGM in the United States). This 5.8 mm light support weapon can fire up to 650 rounds a minute.

No further specifications have been made available, but the drone and robodog pairing seems designed primarily for use in urban environments that are notoriously difficult for human foot soldiers to infiltrate. It could, for example, be used to scout ahead, take out hard-to-access targets or create a diversion. Kestrel Defence explains that ground troops, supported from above, could conduct “a three-dimensional pincer attack on the enemy in the building.”

Large glutamatergic, somatic synapses mediate temporally precise information transfer. In the ventral nucleus of the lateral lemniscus, an auditory brainstem nucleus, the signal of an excitatory large somatic synapse is sign inverted to generate rapid feedforward inhibition with high temporal acuity at sound onsets, a mechanism involved in the suppression of spurious frequency information. The mechanisms of the synaptically driven input–output functions in the ventral nucleus of the lateral lemniscus are not fully resolved. Here, we show in Mongolian gerbils of both sexes that, for stimulation frequencies up to 200 Hz, the EPSC kinetics together with short-term plasticity allow for faithful transmission with only a small increase in latency. Glutamatergic currents are exclusively mediated by AMPARs and NMDARs. Short-term plasticity is frequency-dependent and composed of an initial facilitation followed by depression. Physiologically relevant output generation is limited by the decrease in synaptic conductance through short-term plasticity (STP). At this endbulb synapse, STP acts as a low pass filter and increases the dynamic range of the conductance dependent input–output relation, while NMDAR signaling slightly increases the sensitivity of the input–output function. Our computational model shows that STP-mediated filtering limits the intensity dependence of the spike output, thus maintaining selectivity to sound transients. Our results highlight the interaction of cellular features that together give rise to the computations in the circuit.

SIGNIFICANCE STATEMENT Auditory information processing in the brainstem is a prerequisite for generating our auditory representation of the environment. Thereby, many processing steps rely on temporally precise filtering. Precise feedforward inhibition is a key motif in auditory brainstem processing and produced through sign inversion at several large somatic excitatory synapses. A particular feature of the ventral nucleus of the lateral lemniscus is to produce temporally precise onset inhibition with little temporal variance independent of sound intensity. Our cell-physiology and modeling data explain how the synaptic characteristics of different current components and their short-term plasticity are tuned to establish sound intensity-invariant onset inhibition that is crucial for filtering out spurious frequency information.

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The software supply chain is not linear or simplistic: It is made up of many different components introduced at different times and in different phases.

And, today’s software supply chains only continue to grow in complexity — a mix of proprietary, open-source and third-party code, configurations, binaries, libraries, plugins and other dependencies.

AlphaTensor opens the door to a world where AI designs programs that outperform anything humans engineer—including AI itself.

“Transhumanism” — The intellectual and cultural movement that affirms the possibility and desirability of fundamentally improving the human condition through applied reason, especially by developing and making widely available technologies to eliminate aging and to greatly enhance human intellectual, physical, and psychological capacities. — whatistranshumanism.org.

“…I suppose I’ve been looking for Eden all my life. I think we all have. And I think that primeval communion between humanity and the rest of life did exist once, and perhaps still does in some pockets. But it is not available to modern people except in memory or longing. And the search can be damaging if it distracts you from the fact that, whatever horrors humanity unleashes, the world is still a wonder if we can just get out of our anxious minds long enough to see it. Which is easier written than done.
Both sides in the argument that runs through Alexandria my latest novel —nature versus culture, body versus mind, human versus machine—find that their worldview has holes in. That’s part of the point, I think. Our world is being eaten by this great, terrible machine, but the machine is a manifestation of us.
If my worldview has changed it is only to reveal to me that any “enemy” we might have is lodged firmly in each of our hearts, and that there is nowhere to escape to that doesn’t lead through it.”

Continue reading “**YOUTUBE Talk with Author PAUL KINGSNORTH about ‘The Coming Transhuman Future’” »

Their results apply only to enhanced geothermal plants, like the ones Fervo and other companies such as Cambridge, Mass.–based Quaise Energy and Seattle-based AltaRock Energy are developing.

Conventional geothermal systems drill wells into naturally occurring hydrothermal reservoirs. But these pockets of hot water deep underground do not exist everywhere. In the United States, for instance, they are mostly located in the west.

Enhanced geothermal systems (EGS) get around this geographical limitation by creating artificial reservoirs. Developers create fractures in hot, dry rock formations by drilling into or melting the rock, and then injecting water into the fissures. Production wells bring the heated water up for producing electricity. “For scales necessary to contribute to national or global electricity decarbonization, we need to be able to extract geothermal heat outside of conventional formations,” Ricks says.