Bobrick and Martire’s paper, *Introducing Physical Warp Drives*, revisits the concept of warp drives in general relativity and argues that more physically plausible versions may exist than the famous
Bobrick and Martire’s paper, *Introducing Physical Warp Drives* (arXiv:2102.06824), reexamines warp drive spacetimes in general relativity and aims to make them more physically plausible. The authors