Midjourney, the AI lab best known for image generation, has announced an unexpected healthcare project: an underwater, full-body scanner. Medical experts are expressing caution about what the scans could reliably show — and how consumers might use them. "Today we're gonna announce something a little weird and a little crazy, but also spectacular and filled with hope," the company wrote in a Wednesday blog post. It's called "Midjourney Medical." The plan is centered on an ultrasound scanner that