We have tons of equipment, hundreds of radio-telescopes, uncounted military installations. So why we dont hear anything? There are 3 possible answers:
- Aliens dont exist (unfortunately)
- Aliens dont use radio
- Aliens hide and encrypt thier messages.
Lets imagine you are aliens. You are alone in endless Space surrounded by lot of enemies, have been struggling to survive. Lets also imagine, you fight for hundred years. Obviously you need communication between bases, space ships, palnets and so on. Thus, you can be traced and detected helps to such messages. So what should you do? Indeed you are capable of hiding messages. You hide messages among a space noise, a pulsar radiation and so on. You had chosen noise -like carrier (pseudo-random sequences, for example). Also, you do encrypt your messages. So, what is result like? In fact, result gives us a signal like a noise. Why? Actually, because we choose such a carrier and because encryption always randomizes data.
As an alien you can choose another option. Lets suggest you recorded a real Space noise and hide your signal “inside”.This method is called “steganography”. Its true, that regardless the option you have chosen, your messages become undetectable. Nobody (including barbarian Earth’s people) can catch and decode your messages.
Thus, as we can see all our efforts are useless. We should reconsider our approaches : we should focus on noise, not on signals. May be the noise is the answer? That was my point, guys.
