> through a scientific standpoint, why are zombies so damn fast?

Zombies aren't real... there can be no scientific standpoint. There can be an in fiction reason, but that depends on the fiction not science.

Before the war, he wanted more

And ran away from home

The War to End All Wars had called his name

Data about data. A simple example is with a photo, when it was taken, where it was taken, by what camera etc.

The cost of them is your data, which Google then uses to better target ads.

Everyone of those services reports vast amounts of data back to Google, nor necessarily the actual content but all the other Metadata.

Remember Metadata is good enough for the militaries to use to make kill decisions.

edit To expand on this a bit, some of those tools were expressly created to get people to use them so that they could then sell them to companies, google suite is the prime example of that. This doesn't mean they don't suck up as much data as they can.

Remember if it's an online service and it's free the product is you!

Using the Chess example, the way a chess engine is "smart" is it can look ahead a bunch of moves, and see all the possibilities.

The way you make that "dumber" is you limit the number of moves the engine can look ahead.

To make it more general, you limit the thing that makes it "smart". Sometimes it's as simple as limiting input, see the chess example, sometimes it's more complicated, sometimes it's just adding a wait or a random element. Or a combo of the above.

Right? John should just stay home and stay on mute.

We do? I haven't noticed this personally so it sound anecdotal, unless you have some source saying otherwise.

That said, if I had to guess, i'd say its a similar mental trigger to how running water gives a lot of folks the urge to pee.

That is fair, I really need more coffee... i've been saying that all day.

I'm confused, what part isn't true? If you mean the validating identity.

I guess I could have been clearer, While the social security number is meant to id you for purposes of social security, it was never meant to be a national ID number, or act as one, something it very much has. At the time it was loudly proclaimed it would not be such a thing for vague fears of communism.

Just having someones social security number, doesn't magically give you access to ~anything~ everything, it can with some effort give you useful info. See /u/fox-mcleod's answer bellow for more. HOWEVER it is widely used to validate identity (something it was never meant or designed for), so I can use it to open bank accounts, credit cards, etc. In many systems you can use a social security number to gain access to an account.