The definition of fire is kind of not precise, Humans are on fire (burning calories with oxygen) well nearly everything in contact with oxygen is "on traditiona

The definition of fire is kind of not precise, Humans are on fire (burning calories with oxygen) well nearly everything in contact with oxygen is "on traditional fire", burning alcohol is invisible and no smoke, and the sun does not need oxygen (fusion), so you can say everything that "decays" is on "fire"....even your mixtape.