I've been watching this new YouTube channel, ThirdEyeTyrone and Tyrone often speculates on things such as the nature of time, consciousness, patterns, etc etc. He isn't a scientist or a futurist, just a curious mind who throws his ideas around as what he covers are things that almost no scientist has a definitive answer for. Yet one of the things he always says is that when we don't understand something; we see chaos. Yet everything we see CAN and will make complete and perfect sense when we are able to decipher it.

It got me thinking. Is there anything in our universe that we will probably never understand?

Consciousness is a big contender. It may be that we will never figure out what it is, where it comes from and where it goes. We haven't found any one area of the brain that generates it and we have no way to define it. Yet maybe it does have an explanation and it's just too complex for us to understand right now. Maybe it is non-local

Quantum gravity. Fiendishly difficult but we will probably figure it out in the next century or so.

The Gene complex for extremely difficult to pinpoint traits such as height, sexuality and intelligence. Probably also solved within a century.

Birth of the universe? Maybe never but it make surprise us

That being said. What will we still be scratching our heads about in 2500 or 3000 A.D.?