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Comment They're conflicted (Score 1) 67

Advertisers / data harvesters have their horns firmly gripped in their left hands on this at a conceptual level, but they're rightly holding back, not from a moral stance, but from a late understanding that their targets (audience) will cease to be effective if their eyeballs are suddenly swamped with invented bullshit where they cannot be corralled into making a purchasing or voting decision that works in their favour. In the past, deception at this scale has been too hard for new entrants. Now the established players have had the rug pulled from under them at a rapid speed. Who will pay the right price?

Submission + - Meta's Horizon Worlds Avatars Finally Have Legs (uploadvr.com)

Submitted by Anonymous Coward
An anonymous reader writes: Meta Avatars in Horizon Worlds now have virtual legs. If you launch Horizon Worlds and look in the mirror in the menu space, you'll see your avatar's full body, and you'll see it for other people too when you enter a world. The company's virtual avatars had previously faced widespread ridicule for their upper-body-only appearance. If you look down however you still won't see your own legs. This legs update only applies to third person avatars — other people and yourself in the mirror — not in first person.

Many VR apps & games already give you virtual legs in both first and third person. But no shipping VR system has built-in leg tracking, so virtual legs don’t match the actual movement of your real legs. Further, there's not really a graceful way to handle the transition between sitting and standing, nor to make the legs look natural when moving around with the thumbstick. Some people don’t mind these issues with fake virtual legs, but it feels disconcerting to others.

Legs had already arrived in the Quest home space (branded Horizon Home) two weeks ago for Quest firmware Public Test Channel users, but this is the first time they've arrived in a VR app. Third party apps using Meta Avatars (such as GOLF+) can't yet add legs though, as the SDK hasn't been updated. Horizon's developers seem to have early access to a new version.

Submission + - For the First Time, Research Reveals Crows Use Statistical Logic (arstechnica.com)

Submitted by Anonymous Coward
An anonymous reader writes: [R]esearchers from the University of Tubingen found for the first time that crows can perform statistical reasoning. These results can help scientists better understand the evolution of intelligence (and may give us a better appreciation of what’s going on in our backyard). [...] Dr. Melissa Johnston, a Humboldt Fellow at the University of Tübingen, certainly appreciated the specialness of these creatures, as she and her colleagues have been studying these animals for several years. “In our lab, it has been shown that crows have sophisticated numerical competence, demonstrate abstract thinking, and show careful consideration during decision-making,” she said. In her most recent experiment, Johnston and her team pushed these abilities to a new extreme, testing statistical reasoning.

To do this, Johnston and her team began by training two crows to peck at various images on touchscreens to earn food treats. From this simple routine of peck-then-treat, the researchers significantly raised the stakes. “We introduce the concept of probabilities, such as that not every peck to an image will result in a reward,” Johnston elaborated. “This is where the crows learn the unique pairings between the image on the screen and the likelihood of obtaining a reward.” The crows quickly learned to associate each of the images with a different reward probability. In the experiment, the two crows had to choose between two of these images, each corresponding to a different reward probability. “Crows were tasked with learning rather abstract quantities (i.e., not whole numbers), associating them with abstract symbols, and then applying that combination of information in a reward maximizing way,” Johnston said. Over 10 days of training and 5,000 trials, the researchers found that the two crows continued to pick the higher probability of reward, showing their ability to use statistical inference.

Pushing the crows even further, Johnston and her team waited a whole month before testing the crows again. Even after a month without training, the crows remembered the reward probabilities and could pick the highest number every time. Johnston and her team were excited that the crows could apply statistical reasoning in almost any setting to ensure their reward. "Working with the birds every day is very rewarding! They are very responsive animals, so I enjoy spending time with them,” added Johnston.

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