Logically if the OP was never born, his software wouldn't exist, and a company wouldn't have made the judgement that replacing his software asap would be a good

Logically if the OP was never born, his software wouldn't exist, and a company wouldn't have made the judgement that replacing his software asap would be a good use of up to 19 man years of budget (Of course it's also unknown whether that decision was a sensible one, whether it was forced by external pressure like API changes despite the stability and maintainability of the original system and whether the OP's software possessed equivalent functionality to its expensive replacement. All we know is the choice to create the software again from scratch was, to some extent, influenced by what had already been created)