Tegmark's paper does seem related in that it is arguing that proposals like Bartini's might produce a universe that is 'dead'. It seems that Tegmark's paper is suggesting that only 4 dimensional (3+1) universe produces a world with 'observers'. The math is beyond my ken.

This appears to be the Bartini paper (1965) https://www.researchgate.net/publication/26408302_Relations_...