You don't have to be an expert in economy to be able to say sensible things about capitalism, like you don't need to be an expert in biology to be able to say s

You don't have to be an expert in economy to be able to say sensible things about capitalism, like you don't need to be an expert in biology to be able to say sensible things about evolution or need to be an expert in meteorology to be able to say sensible things about the weather.