One thing I can't understand about evolution

I have no answers, but that's a really good point that would be interesting to hear if someone else has an answer. Personally I'm a believer in evolution through the intelligent design of a creator, who essentially planted the seeds for evolution and watched them grow. That could be an explanation, albeit a less scientific one than you're looking for.

 

I'm no expert (as will become apparent!), But I'd look at simpler systems, such as plants, to explain how sexual reproduction first happened. Once it had happened, (some random mutation) I think it was bound to triumph over asexual reproduction, as by having two inputs, the male and female elements, you are increasing your chance of specialisation, through mutation. The mutation that are the best fit with the environment survive, and reproduce, those that arent so we'll suited don't, and die. So sexual reproduction becomes the powerhouse behind evolution. Gradually, things get more and more specialised and complex.

 

Google "Sexual reproduction and the evolution of sex".

 

Few things in evolution develop through a lengthy "non-working" stage, I can tell you. Reproduction was a critical step that must have been present at the beginning of life, or else the first species would not have continued. If something complex was created, it was likely devoped from a much simpler system that serves the same purpose, but not as well.

In fact, now that I think about it, there must have been countless "life-forms" (emphasis on airquotes) that were created before the first bacteria; bacteria-like beings that "lived" one "life" and then ceased to exist because it couldn't reproduce. Or perhaps the first being wasn't something that could reproduce, but it was extremely adaptive and could almost shapeshift into anything using resources from the environement, and it turned into something that could produce reproductive bacteria.

How does a fully functioning reproductive system just spring from the earth? Science gives a few half-hearted theories, but its one of those things science doesn't have a concrete answer for. We've never seen bacteria just "take form" after all in the present day. Wouldn't bacteria spring up from nothing all over the place in the present day? It must be pretty rare, because as far as I know, its never been documented. Perhaps the world was ripe for life-creation in the past, but now that time is gone. Its still hard to imagine, though, considering how complicated the DNA or RNA is to contain information on proteins, cell walls, nuclei, etc. Did first life even have cell walls and nuclei?

It boggles the mind, surely.

 

I believe that our system made us with a purpose to be separate, maybe that would be able to socialize with each other as well.
If we were our own breeders people would have less need in community and then each of us could have live for his/her own sake. But the truth is that we are separate, men and women. And there is a cause for it. It would be interesting to know what would have happened if each of us did not need anyone else to breed. I don't think the world was a better place.
Think about it as a challenge that the evolution gave us. The challenge to socialize with other people and eventually make a family with one of them. It is quite fascinating if you look at it like this. Think about it.

 

Is that a quote from some science journal or something? Stuff like that is a scientist's way of saying "I don't know but I'm obligated to give answer so that I sound smart and competent at my job." Not that scientists are frauds or anything, its a great way to analyse the world and has done us so much good. But people look to scientists for all the answers, and the truth is that there is so much that science doesn't know right now.

We've never drilled more than 8 miles down the earth's crust, nor explored the deepest parts of our oceans. We're finding new things about other animals and plants constantly (apparently, spiders can fly via static electricity?), something you'd expect we'd have a grasp on by now. There's load of questions about our own bodies that we have no answers for, and neuro-science is basically "this blob shows up on the brain scan when we do this, and also when we do this, so that's something." The methods we have of detecting planets depend on specific circumstances, so we have no idea how many planets there are in our galaxy. Supposedly the universe expanded, started slowing down, then randomly starting accelerating and we have no idea why. Dark Matter is science's fancy word for "our equations don't line up with how galaxies move, so there must be some magic substance out there messing everything up, and it makes up 70% of everything." And those aren't even the profound questions.

Tl;dr scientists like to pretend they know everything, but its far from true.