I'm so confused. Some diagramming app no one has heard of has to scale to 'exponential' growth and figure out:

* [not] loading a lot of session data on every request

* storing data across shards

* parallel processing

* a services approach

Wow, I think something is over-architected.

Curious: does exponential growth mean 2 concurrent users to 4? If they have more than 100 concurrent users, I would be highly skeptical.

And, if they can't solve that problem with any language, I would also be highly skeptical.