[jsmeaton]

Instead you appear to be advocating for over engineering a solution for a problem you don’t yet have where the opportunity costs are probably features customers can use. That is also a huge risk to a business, but one that is immediate.

[nickh9000]

Thinking about how you would shard your data is hardly over engineering. On some storage systems you are forced to anyway: Cassandra, dynamodb.

And the cost of building the solution from the onset is hardly a killer. The pain usually comes from operational complexity.