OR
You can start with a system that's rubbish, experiment and build a better one with feedback. That's the Silicon Valley style - but it's also the scientific way.
Silicon Valley Style
'freemium' - give away the basic product to draw users, and then charge for premium add-ons.add-ons: certification ($10-$30)
'big-data on education'
A large lecture room can be replaced but no substitute for a CONVERSATION
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