[jareklupinski]

> cloaking of extraterrestrial civilisations

> as a result the mass and energy of the universe doesn’t add up

wouldnt something smart enough to put up a cloak know that they should put up something to replace the missing data?

i mean... i would hope...

[simne]

To cloak from so weak civilization as we, need to just hide electromagnetic emissions, as we cannot detect distant objects which don't emit anything EM to our direction.

Even recent stealth technologies know from late 1970th, how to hide from radio waves reflections and how to hide visual reflections and how to hide infrared emissions (slot nozzle, directed where no observer).