Allbirds (BIRD) soared 600% on Wednesday's trading session after making a heel turn from sneakers and into AI infrastructure. David Trainer of New Constructs calls the move a "wild hail Mary" and, more bluntly, a "trick" to renew company value. He goes deeper into the Allbirds business model and troubling signs he saw in the company even before it issued its IPO. David calls it a lesson for investors to properly evaluate a company before buying shares.