Because now, with this idea we can take a random sample of people, have them nominate their friends, those friends would be more central, and we could do this without having to map the network.
Karena dengan ide ini, kita bisa memilih sampel secara acak, meminta mereka menominasikan teman mereka, teman mereka akan lebih memusat, kita bisa melakukan ini tanpa harus memetakan jaringan.