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lucian

slide 31 / video min 16:07

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Global SMS: 20 bn messages a day

WhatsApp: 30 bn messages a day.

(with just 40 engineers)

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should be refactored:

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Global SMS: 20 bn messages a day

(10.000 Engineers using C/C++/Java - just guessing)

WhatsApp: 30 bn messages a day

(with just 40 engineers using Erlang)

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Two things that are very wrong with this:

1. WhatsApp is dependant on cellular infrastructure which you count into your 10k engineers.

2. "Erlang was designed with the aim of improving the development of telephony applications."[1] So it powers/powered a large part of the cellular infrastructure.

[1] https://en.wikipedia.org/wiki/Erlang_(programming_language)

Isn't SMS using the cellular infrastructure as well?

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