This is my take on all this. I think if we could quantify all the knowledge in the universe it would be like stuffing the universe with 10^119 number of hydrogen atoms. I think I figured out one time that's how many from a volume perspective would fit into what we measure as the observable universe. The sum total of our knowledge and understanding would in my view be represented by just one of those atoms. I figure odds are good there are other civilizations out there. Many are like us and very primitive. I figure about 98% of all primitive civilization end up going extinct for a variety of reasons. Some civilizations are in transition. Some are advanced in their intelligence. I call those guys level III. Level 4 on my scale are super luminas. Their civilizations have survived for millions of years. The highest order civilizations are what I call the immortals. They've existed for hundreds of millions of years. Those guys are very smart. They probably know about what we would suspect is everything that could possibly be known but in reality it probably only represents a few thousand of those Hydrogen atoms.
Now you may be wondering what any of that has to do with meaning and purpose. Nothing. Really. No meaning. No Purpose. Just killing time waiting for Fingers to post the practice report tomorrow.