(Image credit: Tesla) Ahead of its hotly anticipated IPO, Elon Musk's SpaceX has admitted in its Form S-1 document that to fully scale its orbital AI ambitions, it needs more AI hardware than it can currently obtain. Furthermore, while the company says that the ambitious Terafab project may address chip constraints, it also noted that the project may not be successful and that current partners Tesla and Intel have no obligation to stick with the project long-term. As with all IPOs, the SEC requires that the company list all risk factors, both large and small, and these often even include 'Acts of God,' such as potential weather events, so the comments must be taken with the proper perspective. However, they do illustrate some of the roadblocks the company could perceive as genuine challenges to its business model.…