>>> “The alien-megastructure idea runs wrong with my new observations,” he says, as he thinks even advanced aliens wouldn’t be able to build something capable of covering a fifth of a star in just a century. What’s more, such an object should radiate light absorbed from the star as heat, but the infrared signal from Tabby’s star appears normal, he says.
That seems a rather unambitious approach to possible alien tech. We today clearly could not build, or think of how to build, such structures. That isn't to say that the technology isn't possible, just that we do not understand it. If aliens were able to create and fly structures of such size I think it safe to say they would also be in possession of tech we cannot contemplate.
That seems a rather unambitious approach to possible alien tech. We today clearly could not build, or think of how to build, such structures. That isn't to say that the technology isn't possible, just that we do not understand it. If aliens were able to create and fly structures of such size I think it safe to say they would also be in possession of tech we cannot contemplate.