[aplomb]

There won't be another SV just like there won't be another NYC for Finance in the US - they become monuments and the skills gradually disperse till it just becomes what everyone does (FL, NC, NJ have seen significant uptick in finance from NYC).

The next X is going to be a field currently undervalued, it'll be small companies because the initial opportunities are too small, they'll likely be in an area that is balanced to low cost-proximity to market (if applicable) (does anyone remember what a ghetto Palo Alto and Milpitas was a few decades ago?), and it'll be largely unregulated (that comes after when the big boys want to shut the door behind them).

I'm thinking this next wave could be a few things, but summed up by machine intelligence - machine learning underpinned by IoT, alt energy, energy storage, next gen comms, etc. Or it's local maxima and time for a WWIII board clearing.