By Morris Jones
Our search for extraterrestrial intelligence employs as many methodologies as possible. It makes sense. The more you look, the greater the chances of discovering ETI. There’s another issue. We are not really sure of how extraterrestrials would communicate with us. Would they use radio waves, lasers, or something more exotic? Perhaps the universe is awash in extraterrestrial signals that we cannot even receive. SETI and METI practitioners spend a lot of time wondering how a message would be encoded in terms of language and content. It’s also important to consider the medium of transmission.