In Gulliver's Travels why does Gulliver summon the shades of Rene Descartes and Pierre Gassendi to talk to Aristotle?

In "Gulliver's Travels", Gulliver summons the shades of Descartes and Gassendi to talk to Aristotle to engage in a philosophical debate about reason and exploration of knowledge. Their presence highlights Swift's satire on the limitations of dogmatic beliefs and the quest for truth through rational inquiry. Through this interaction, Swift critiques the blind adherence to authorities and encourages readers to question traditional wisdom.