That happens with technologies where there's a strong benefit to standardization. Standardizing on USB and Bluetooth means your devices can interoperate. There

That happens with technologies where there's a strong benefit to standardization. Standardizing on USB and Bluetooth means your devices can interoperate. There's already no "standard" laptop design, just a set of desirable properties people want. And there's already no push to converge; there are many laptop vendors. There's plenty of room for a new vendor with different priorities (like modularity); there's more room for such a vendor than there is for one more undifferentiated vendor.