Is It Possible To Get The Same 24 BIP39 Seed Words?

In this video, I answer the question, is it possible for two people to get the same 24 BIP39 seed words used to create the private and public keys for crypto currencies? I also work out the number of possible combinations from the BIP39 seed word list.

Gears I use to film my videos.

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[jaykemm]

So you're telling me there's a chance - Lloyd Christmas

[PressTube]

So with only 3 words you can almost give everyone on earth a unique combination.

[LittleBigWelsh]

When choosing the 2nd number if you assume it will not be a chosen word already then the seconds combination will be 2048-1=2047 and so on so it won’t be 2048^2 it will be 2048*2047

[Zimerer]

Great explanation, very easy to understand. Thank you!

[armxy]

Dude, I like how you explain this. You earn +1 sub here!.

[CrisHeatx]

Great video! Answered my random 3AM thought. You are awesome!

[jhimmothy]

Thanks for showing us all! Great video!

[VirionXtreme]

Last word is a checksum, it's not random between the 2048 words but a specific one between them, so is even more difficult because if don't generate the correct last word the address is even not valid.

[haris]

Just found out about your channel, Thanks for the explanation :), What about the 12-word seed phase?

[yawzerdoink-a-sore-as]

Thank you for explaining it. I understand now.

[XatoDrum]

Nice video, I like the explaination with the papers.

But you would need to discard the invalid mnemonics, not all combinations are valid as it needs to test the checksum. You calculated an upper bound of the combinations.

It would be nice to see an updated video with the exact real number of combinations (which would still be extremely large).

[funbrothers]

your so geeky and its nice to see you being passionate about numbers, good on you John, keep well greetings from Oz....

[musevi]

That was very interesting. Thank you for this video!

[Christopher-evzi]

wholey smoley#!@ GREAT video, excellent clarification. You're a great teacher John! Much appreciated. This made me a new subscriber.

[Whale]

Its like shooting an arrow into the universe that hits an atom then having someone else try to hit the same atom with their arrow without even knowing where they are suppose to be shooting the second arrow.

[leesweets]

I would like to understand the mathematics behind how a single 24 word seed gives rise to everything else. For example, how do we derive the public and private keypair for a wallet, and how do we derive an address? Can a single address be controlled by different private keys owned by different people? Specifically, different bits of coin associated with that address are encrypted by two different owners. And we're not limited to a single address either... how are we able to derive the entire sequence of addresses and how many are in the sequence? Do they all have the same private key or does each get a unique private key? How is the calculation different across the different coin and token types?

[dahuar]

Thank you you help me with that question I has in my mind I see that 12 words is super secure and the fact that they are not in alphabetical order that are completely random it is just crazy. But guess what? When I created a new waller on the smart chain of Binance the system gime one that had some tokens like it was abandon so I make a new one, cannot tell what happened there.

[MyLibertyTV]

If it ever happens there will be exactly one winner and exactly one loser.

[sarasotafl]

Hi, does the generators of seed phrases know of the existing seed phrases already created? so as not to generate the same one?

[The_battle_of_mages]

If you enter a random seedphrase words to metamask and you can get acces. Is that then a wallet of someone else