I think a lot of people tend to over-estimate how "scalable" they need their platform to be. Or worse, they spend so much effort on what they think will be a b

I think a lot of people tend to over-estimate how "scalable" they need their platform to be. Or worse, they spend so much effort on what they think will be a bottleneck, only to find they spent optimizing something which could have run on a single core. I tend to think monolith first makes sense, unless you thoroughly understand the problem-space.. even then, monolithic POC might be worth it just to confirm things.