I can't describe how many times someone's asked me what I did last weekend and I told them that I did just had a quiet one at home, then later I'm reminded I actually went skiing or something notable that I completely forgot. Not just passing conversations with strangers either, this happens with family just as much.
I take a more pessimistic view on how it affects my life than the author does though. He handwaves the downsides even saying that he '... had learned my lessons from them [trials in university], even though I forgot how they unfolded.' I understand the desire to think that but I'm not sure how you can really justify it. The brain definitely learns to compensate in other ways and I have really unbalanced cognitive tests I took as a kid as evidence, but memory deficiencies are undoubtedly a disadvantage.