A cautionary case of casual causality

We distinguish between the notions of asymptotic causality and infrared for gravitational effective field theories, show that latter gives constraints consistent with positivity bounds. re-explore scattering waves in a spherically symmetric background EFT gravity $D\ge 5$, which leading-order correction to Einstein is determined by Gauss-Bonnet operator. reproduce known result truncated theory exhibits apparent time advances relative geometry specific polarisations, naively signal violation causality. properly identifying regime validity theory, advance can be shown unresolvable. To illustrate this, we identify higher-dimension operators expansion become large potentially resolvable advances, rendering invalid. Our results demonstrate how staying within confines EFT, neither nor are ever violated Einstein-Gauss-Bonnet gravity, no matter low scale, furthermore its understood without appealing precise UV completion such as string theory.