The hardest part of building your own search engine is not that it is technically hard (it's actually pretty easy) but that the bar for success is just really h

The hardest part of building your own search engine is not that it is technically hard (it's actually pretty easy) but that the bar for success is just really high. There are a few existing engines and they offer their services for free. So, not only is the bar really high, you have no viable revenue model and this stuff gets expensive quickly. Or put differently, if you are going to replicate what existing search engines already do, you are probably not going to be as good initially and you are going to struggle making money. Fixing the money part is the hard part.