WhatsApp is not 'vastly more innovative', and they solved different kinds of problems.
Twitter is a 'universe of 100M connected people'.
WhatsApp mostly connected single entities together.
So, for example, 'real time search' and 'relevant updates'.
Imagine taking a firehose of 100M people's random thoughts, putting that into an index, making it instantly searchable. Now pull up the most relevant thoughts from those 100M to each and every other 100M user.
Now moderate all of it in really subtle ways, whereupon most of the 'negative activity' is tantamount to spam or annoying behaviour, and not anything we might normally consider 'abuse'.
That's an incredibly different challenge and that's only two small artifacts of what they are doing.
Twitter is not rocket science, but it's not trivial either.
Also consider that R&D is usually maybe on 20% of overhead - yes - it takes 'all those other jobs and expenses' to run a company.
Twitter is a 'universe of 100M connected people'.
WhatsApp mostly connected single entities together.
So, for example, 'real time search' and 'relevant updates'.
Imagine taking a firehose of 100M people's random thoughts, putting that into an index, making it instantly searchable. Now pull up the most relevant thoughts from those 100M to each and every other 100M user.
Now moderate all of it in really subtle ways, whereupon most of the 'negative activity' is tantamount to spam or annoying behaviour, and not anything we might normally consider 'abuse'.
That's an incredibly different challenge and that's only two small artifacts of what they are doing.
Twitter is not rocket science, but it's not trivial either.
Also consider that R&D is usually maybe on 20% of overhead - yes - it takes 'all those other jobs and expenses' to run a company.
Some of these statements are a bit glib.