> "Is there any single piece of technology that's more retro-futuristic than the SR-71?"
Maybe not more, but up there with it are the Concorde, and the H&K G11.
Also, if you like the SR-71, check out the A-12. The immediate predecessor of the SR-71, very easy to confuse the two, with the notable exception of the A-12 having a single seat. I think that makes it even cooler. Just one pilot, no other aircrew, up there alone with the machine. That's really incredible to me.
Maybe not more, but up there with it are the Concorde, and the H&K G11.
Also, if you like the SR-71, check out the A-12. The immediate predecessor of the SR-71, very easy to confuse the two, with the notable exception of the A-12 having a single seat. I think that makes it even cooler. Just one pilot, no other aircrew, up there alone with the machine. That's really incredible to me.