# Useless alone, but deadly in numbers

A nice riddle my friend Nathan made:

Useless alone,
I am at the heart of connection.
Me and my friends are at the root of modern society.
Though indivisibly small,
Humanity's hive mind.

What am I?

Hint #1:

Think indivisibly small

Hint #2:

I really do mean deadly in numbers

If you choose to downvote please comment with a reason below so I may improve/fix the problem.

• Is connection intentionally misspelled?
– bleh
Commented Nov 26, 2016 at 3:32
• This can turn into too broad. You can edit and add few more lines to it. Commented Nov 26, 2016 at 4:28
• may be it's a nucleus Commented Nov 26, 2016 at 4:45
• I'm starting to get a mitochondria vibe from the extra lines and bonuses lol.. Those who played parasite eve will know what I'm talking about. Commented Nov 26, 2016 at 4:46
• An ryrpgeba(rot13) is divisible though
– bleh
Commented Nov 26, 2016 at 15:00

My second guess after the edits in question and hints

Are you an

Electron?

Useless alone,

electron is useless if alone. But electricity is the collection of electrons.

Electrocution

I am at the heart of connection.

Electron (electricity) is the heart of all connections

Me and my friends are at the root of modern society.

Electrons/Electricity is the root of modern society

Though indivisibly small,

Electron is indivisibly small.

Computers and computational devices

Humanity's hive mind.

Networking

Are you a

Mobile Phone

Useless alone,

Mobile phone is useless alone. We can contact or keep in touch with others only if they too have one.

There are billions of mobile phones

I am at the heart of connection.

Mobiles are the heart of connection (social media, chat etc)

Me and my friends are at the root of modern society.

Mobiles are a must in the modern society.

Nowadays mobile phones has so many features that we can even call it as our second brain.

Humanity's hive mind.

We can store and record everything in it.

• "Indivisibly small" Commented Nov 26, 2016 at 4:36
• Ive updated the riddle and added some hints, check them out and try again please. Commented Nov 26, 2016 at 4:47
• Bingo, indivisibly small, something others have missed. Commented Nov 26, 2016 at 5:18
• Oh. I updated as Neuron. :D anyway +1 Commented Nov 26, 2016 at 5:20

Are you

A computer?

Useless alone, but deadly in numbers.

A computer by itself is not much, but when it is connected on a network or the internet with all the other computers of the planet it really shines!
Deadly in numbers could also refer to a dos attack from computer "zombies" for the tech savvy out there.

I am at the heart of connection.

Connects everyone through the internet.

Me and my friends are at the root of modern society.

Computers and information technology is what drives all the recent advancement in technology.

We operate your second brain, Humanity's hive mind.

Google is pretty much like a second brain to me. The hive mind refer to how our knowledge is all shared between us and seems like we think as a collective... Like the Borgs(for those who understands the reference :P)

• "Indivisibly small" Commented Nov 26, 2016 at 4:36
• Ive updated the riddle and added some hints, check them out and try again please. Commented Nov 26, 2016 at 4:45
• Are computers useless alone though? Just some thought.
– user21682
Commented Nov 26, 2016 at 17:21
• "A computer by itself is not much" - really..? Commented Nov 26, 2016 at 19:03

Question may be too broad at the moment. So another answer -

Zero.

Updated

Is it

Neuron

Useless alone,

Obvio.

All the calculations are done using neurons.

I am at the heart of connection.

Neurons help brain to communicate with other body parts.

Me and my friends are at the root of modern society.

Neuro Science and other studies

Though indivisibly small, We operate your second brain, Humanity's hive mind.

They reside in Cerebellum at the back. Hence second brain

• Ive updated the riddle and added some hints, check them out and try again please. Commented Nov 26, 2016 at 4:47
• @ThatAmateurRiddler- Updated Commented Nov 26, 2016 at 5:13

Edit: too slow haha

It is

an electron.

Useless alone, but deadly in numbers.

because electric shocks.

I am at the heart of connection. Me and my friends are at the root of modern society.

Electricity is essential for modern society and its means of communication.

Though indivisibly small,

Electrons are indivisible.

That would be the computer.

Humanity's hive mind.

Or the Internet, I guess.

Are you a

Ray of light

? Makes sense doesn't it?

though indivisibly small

its thickness cannot be measured on a ruler.

Useless alone

one ray of light is barely visible

flashbang!!!

Hive mind

human receives >95% of data through rays of light.

For the rest lines

I am everywhere!!!

Is it

Bacteria

Because

Bacteria operate your second brain (your gut), are invisibly small and deadly in large numbers (as in an infection).

Furthermore,

Bacteria are crucial components in a lot of process and could therefore be regarded as a fabric of (modern) society.

• I do not know how to edit it, so it only become visible when someone hoovers with the pointer. Commented Nov 26, 2016 at 16:49
• What 'second brain'? Commented Nov 26, 2016 at 16:51
• puzzling.stackexchange.com/editing-help Commented Nov 26, 2016 at 16:53
• @Mithrandir, the second brain is one's gut (see [this article] (scientificamerican.com/article/gut-second-brain) Commented Nov 26, 2016 at 16:59