What if anxiety is why humans exist?

I have a theory. Let's look at the ecosystem in general. Plants make animals happy because they give food and shelter. It's almost as if animals exist for the benefit of plants. What if it was the same way across the planet, that every life form exists for some other life form's benefit? I think humans have anxiety because our purpose is to built technology to help other life forms, these are going to be robots that perform great feats that some humans can't.<br><br>I can't remember where I heard this but you want to give a computer tasks that humans wouldn't want to do. So that actually makes sense, when our purpose is fulfilled we'll no longer have anxiety like we do now. Animals have anxiety too but they have a clearer purpose in life, which is to hunt and eat. Humans on the other hand have a lot of time and space to overthink life. This is why we have anxiety because we're still figuring it out. We have a lot of time to think about our anxieties and we can communicate it more effectively to other humans, we won't have that anymore when our time is used effectively.<br><br>&#x200B;<br><br>Edit: Wow, I didn't think this post would get this much attention lol, thanks for all the comments and awards, this is my first time on the front page, it's been a fun day so far.