I think if we have the "final software" there won't be a need for a website to sell you products or another for renting a place for your vacation or the one that processes your payments. All is done in one software with one interface. I don't see a need for most of the current founders, especially for solo ones. Also consolidating this capability in a few big tech companies means whatever happened to other industries after industrial age, will happend to ours. Compare the current software industry to other industries with big players (chemical, aviation, power, etc.) where the barrier to entry is higher. Sure there are startups, but not as many as in software scene and even then, many of the are digitalizing those industries.