such studies inevitably biased to find failures tho. successes rarely get written up. so finding details on them is much harder. also depends what you mean by

such studies inevitably biased to find failures tho. successes rarely get written up. so finding details on them is much harder. also depends what you mean by fail. if fail means "ran over budget and hit loads of unexpected problems" then yeah, most probably do "fail". if fail means "shut down prematurly and abandoned without hope" then afaik, your only really talking about stuff by google and microsoft. most other software houses would fail with their software. and plenty are still arond from the 90s. intel. ibm. apple... not so much real fail, for example.