Oddly, you may have trouble remembering because you know where to find the answer. Simply put, you remember a more general answer to the same question. It is not that you don't remember at all.
Somewhat. And it isn't just Google. Now that you have a cell phone, you are probably not as good at remembering phone numbers as folks were 20 years ago. I know I used to remember some numbers. Now, I barely remember my own.
So, same goes for how can you tell if it will rain soon? Well, used to folks knew some tricks by looking at the sky. Some folks still know them. By and large, everyone else is more accurate by asking their devices.
Want to know how far away something is? There is an amazing trick you can do with your thumb and line of site. If you really want to know, though, get a range finder. :)
And it isn't just memory. Consider how much weaker most people's arms are today than they used to be.
