From an article entitled Neutrinos still faster than light in latest version of experiment, the Guardian optimistically posits the possibility of time travel. A tad too optimistically, in my view.
There’s a real problem with time travel, in that it can, quite reasonably, be argued that the past no longer exists and the future hasn’t happened yet – so neither are in any meaningful way “there”.
But assuming, for the sake of argument, that both do exist in some tangible form, locating them in space-time is a hell of a challenge. Even Mars probes have to be aimed not for Mars, but for the point in space where Continue reading