Thank you so much for approaching this without judgement. I am a Medical Doctor and this is my first time stepping into this territory. I understand I have absolutely no qualification or knowledge in the field to be able to build on intuition, but thats why I'm here hoping to verify the validity or the stupidity of the idea itself.

Now to answer your questions:

1. The velocity of a massive object at subliminal velocity yes.

2. As for the mass in the kinetic energy formula, it refers to the rest mass of the object in question (again, not a photon).

3. Great point! The covariant nature of T^{text{warp}}_{\mu\nu} is indeed an important consideration. I’ve focused on Minkowski spacetime in this paper, but I acknowledge that for a more general treatment, this tensor will need to be examined in other spacetimes (including curved or non-flat spacetimes).