And not that I am disbelieving this information, but if they were so advanced, why weren't they able to stop the cosmic catastrophe's from happening.
You would think their space knowledge would be so more advanced than ours that they would have been able to build an energy shield of some kind. Okay - I might be going a little too Sci Fi here but I would think they could have done something.
That is a good question. And the way it looks... they did in fact know it was coming and did prepare for it the best way they knew how.
They may not have had a Sci-Fi like force field... but some theorize that the super massive megalithic stone structures were built in an attempt to give them the protection they needed from the oncoming comet strike. They 100% had tremendous knowledge of the stars and our solar system. We have proven that years ago. They may have known they had to prepare for this and did what they could.
Many of the old megalithic structures across the globe show signs of extreme heat exposure. The heat damage could not have been cause by fire either... the temps of fire aren't even close to the heat required to actually burn these hard stones. Some of the megalithic structures were completely in ruins... like Puma Punko in South America. Massive stones just blown apart and tossed all over the place like they were tiny cinder blocks instead of being precision cut hard stones weighing tons. So some of the structures clearly did not survive in tact... but the massive stones were somehow thrown around and blown apart... it damn sure didn't happen from too many bow and arrow shots.
There are also amazing ancient underground structures that were carved out of pure rock with extreme precision. Massive underground complexes and they are all over the world... many right in Egypt underneath the Giza area. Incredible multiple level underground systems that go extremely deep. It's as if the ancients knew they were going to need to take cover underground and have enough space and protection from something for an extended period of time.
And think about it. The gigantic stones they used in their structures... many weighing 60 to over 100 tons... that shit ain't easy in the slightest way even for us today. They surely didn't use things that massive because it was no problem/easy or for the cool look. They used them because they had a serious reason to. They obviously were seeking protection from something extremely powerful.
Many of these structures are still standing today. The engineering and stones used in their construction were unbelievable feats of skill and intelligence. They obviously served their purpose well because the human race survived. Most of their ancient civilization did not... but those that did survive helped with their ancient knowledge to help civilization seem to spring up out of seemingly nowhere 12 - 15 thousand years ago. That number continues to rise btw.
Anyway... the megalithic structures are standing there today telling us a story. And it's not the story of the pyramids being built as tombs... they weren't built for that. Nobody truly can explain what they were built for or how they were built to this day. The amazing story they are screaming to us... The Great Pyramid is the oldest one... it was built with FAR more precision than all of the other pyramids built around it years later. Why would the oldest one be built so much better than the ones that followed? Well, that's because the people who built the pyramids after that one didn't posses the same amount of knowledge or skill to do so. Normally... the newest structures show massive improvements in design and skill... never the other way around.