Speaking of Scott Aaronson he has more recently (2013) wrote a much longer exposition about consciousness and (quantum) computation, and has a chapter specifica

Speaking of Scott Aaronson he has more recently (2013) wrote a much longer exposition about consciousness and (quantum) computation, and has a chapter specifically for Penrose: https://www.scottaaronson.com/papers/giqtm3.pdf https://www.scottaaronson.com/papers/giqtm3.pdf