Add punctuation: He will be able to experience only a world whose inhabitants reflect the highest form of mental pessimism
A: He will be able to experience only a world whose inhabitants reflect the highest form of mental pessimism.

Add punctuation: Film 15 Palletizing of bags with frozen rice and pasta
A: Film 15 - Palletizing of bags with frozen rice and pasta

Add punctuation: 10 people for a while and doing it wonderfully by the way and
A:
10 people for a while (and doing it wonderfully, by the way), and