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What does "targeting mobile users" mean in the context of a currency? My bank doesn't "target mobile users" when it chose to offer interac payments.

philips 6y ago
https://github.com/mobilecoinfoundation/fog#overview https://github.com/mobilecoinfoundation/fog#overview This explains the issues fairly well. tl;dr most blockchains require a CPU and/or network expensive sync which is prohibitive on mobile. As a fix/hack many web and mobile apps have a SPOF gateway which the client must trust absolutely.
baby 6y ago
The whole point of cryptocurrencies is that you don’t need to trust that your bank and all the other banks have settled funds correctly, you can verify that they’ve done it (to some extent). In the case of your experience, you have really no clue if the number your bank is showing you is accurate (and indeed errors are frequent, you probably have seen double charges or transactions that later disappeared). In the context of a cryptocurrency like bitcoin you also have to trust the server you’re talking to, if you’re a light client (a client that doesn’t want to download the whole history). So Bitcoin is not a great choice for mobile clients that don’t want to have to trust another third party. Which in general is the threat model of Signal.
- freeone3000 6y ago
  So, in short, a mobile-friendly network is a small network with simple algorithms and fast transfers, where every address is pseudonymous and may drop in or out at any time with no reputational results? These are very bad properties for a blockchain to have, from an integrity context.
  - baby 6y ago
    That’s not what I said: a mobile friendly cryptocurrency is a network you can query and that gives you a response you can fully verify: this is your account balance at this point in time, and it’s correct you can verify it with this proof of a small size (because in some coutries you’re paying for every bytes you’re downloading). Now fast transactions (finality) is an upside for any type of currency really.

philips 6y ago

https://github.com/mobilecoinfoundation/fog#overview https://github.com/mobilecoinfoundation/fog#overview This explains the issues fairly well. tl;dr most blockchains require a CPU and/or network expensive sync which is prohibitive on mobile. As a fix/hack many web and mobile apps have a SPOF gateway which the client must trust absolutely.

baby 6y ago

The whole point of cryptocurrencies is that you don’t need to trust that your bank and all the other banks have settled funds correctly, you can verify that they’ve done it (to some extent). In the case of your experience, you have really no clue if the number your bank is showing you is accurate (and indeed errors are frequent, you probably have seen double charges or transactions that later disappeared). In the context of a cryptocurrency like bitcoin you also have to trust the server you’re talking to, if you’re a light client (a client that doesn’t want to download the whole history). So Bitcoin is not a great choice for mobile clients that don’t want to have to trust another third party. Which in general is the threat model of Signal.

freeone3000 6y ago
So, in short, a mobile-friendly network is a small network with simple algorithms and fast transfers, where every address is pseudonymous and may drop in or out at any time with no reputational results? These are very bad properties for a blockchain to have, from an integrity context.
- baby 6y ago
  That’s not what I said: a mobile friendly cryptocurrency is a network you can query and that gives you a response you can fully verify: this is your account balance at this point in time, and it’s correct you can verify it with this proof of a small size (because in some coutries you’re paying for every bytes you’re downloading). Now fast transactions (finality) is an upside for any type of currency really.