[4] Each stage includes a set of "cognitive tools", as Egan calls them, that enrich our understanding of reality.
Egan suggests that recapitulating these stages is an alternative to the contradictions between the Platonic, Rousseauian and socialising goals of education.
[3] The idea of applying theory of recapitulation to education came from 19th century philosopher Herbert Spencer, although Egan uses it in a very different way.
The same year the essay was published (1997), Italian comedian-satirist Daniele Luttazzi used Egan's ideas for his character Prof. Fontecedro in the popular TV show Mai dire Gol, aired on Italia 1.
Fontecedro was satirizing the inadequacies of the Italian school system, and the reforms proposed by Luigi Berlinguer, 1996-2000 Ministry of Education of Italy.