Fascinating piece on Camus. But, with all due respect to the great man, I believe he was dead wrong on your #3, certainly on the "Meaning".

Yes, it is futile waking up in the morning and saying: "Today or this week I am going to pursue happiness". Why? Because there are too many unknowns, unexpected and inexplicable that can quash that type of desire or plan.

However, "Meaning in life", especially philosophically speaking belongs to a different realm. If what you said about what he said about "Meaning' is true, I can assure you that he would have revised his thoughts — like all great thinkers do — had he lived to his 70s or 80s.