Enlarge / Pager, a 9-year-old Macaque, plays MindPong with his Neuralink. (credit: YouTube/NeuraLink)

The US Department of Transportation is investigating allegations that Elon Musk's brain-computer interface company, Neuralink, violated federal transportation regulations when it shipped contaminated implants removed from the brains of deceased research monkeys infected with multiple types of dangerous pathogens. The alleged violations could have put humans at risk of exposure to hazardous germs, including drug-resistant bacteria and a potentially life-threatening herpes virus.

Reuters was the first to report the department's investigation, which was sparked by allegations brought Thursday by the Physicians Committee for Responsible Medicine (PCRM), a medical group that advocates for animal welfare in medical research. The Department of Transportation confirmed to Ars on Friday that it has opened a standard investigation of Neuralink in response to PCRM's allegations.

In a letter addressed to Transportation Secretary Pete Buttigieg and William Schoonover, associate administrator of the department's Pipeline and Hazardous Material Safety Administration, the PCRM laid out its evidence for possible violations of hazardous material transportation regulations based on a trove of documents and emails obtained through public record requests. The advocacy group says the evidence shows Neuralink's contaminated hardware was not properly packaged to prevent exposure to humans and that Neuralink employees who transported the material had failed to undergo legally required training on how to safely transport such material.

Enlarge / An example of computer-synthesized handwriting generated by Calligrapher.ai. (credit: Ars Technica)

Thanks to a free web app called calligrapher.ai, anyone can simulate handwriting with a neural network that runs in a browser via JavaScript. After typing a sentence, the site renders it as handwriting in nine different styles, each of which is adjustable with properties such as speed, legibility, and stroke width. It also allows downloading the resulting faux handwriting sample in an SVG vector file.

The demo is particularly interesting because it doesn't use a font. Typefaces that look like handwriting have been around for over 80 years, but each letter comes out as a duplicate no matter how many times you use it.

During the past decade, computer scientists have relaxed those restrictions by discovering new ways to simulate the dynamic variety of human handwriting using neural networks.