So?
> Nobody has put forth a credible theoretical model on how to do it.
HVDC global grid, mentioned loads of times on this forum. 60% antipodal loss with existing components that were optimised for much shorter connections, but even that loss is fine given how cheap optimally placed PV is. Cost about a trillion USD (ok) and a few decades of current global aluminium and copper production (meh), but that’s still absolutely in the realm of the “we could afford it, shame about the politics”.
https://ieeexplore.ieee.org/document/9837910
> Even former critics must admit that adding e-fuels through PtX makes 100% RE possible at costs similar to fossil fuels. These critics are still questioning whether 100% RE is the cheapest solution but no longer claim it would be unfeasible or prohibitively expensive.
It is, in fact, not. And, you are no reliable judge of it. Your assessment will have exactly zero effect on how the transition to renewables plays out.
Either we transition to renewables fast enough, or global civilization collapses first. Nobody can say which.