I wasn't necessarily trying to address what we can look for. I was trying to ask, what are things we are even capable of looking for? I am aware of Dyson swarms

I wasn't necessarily trying to address what we can look for. I was trying to ask, what are things we are even capable of looking for? I am aware of Dyson swarms, but is it not the case that the enumeration of objects that emit infrared large? The Fermi paradox is not really a paradox of sorts, especially given when it was formulated. Because if we aren't even capable of detecting life, then how can we ask where is it?