Great post Faisal with lots of insights to ponder on.
I would like to add to your list of challenger banks below, Tinkoff which has already 8 million customers ranking it close to Nubank`s large customer base.
`Of the seven challenger banks — Uala, N26, Monzo, Qapital, Chime, Nubank, and Revolut — Nubank is by far the largest with 9M customers.`