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In reply to the discussion: Clooney: Pressuring Biden to drop out was a "mistake" [View all]moniss
(8,514 posts)about my experience some years back with Turbo-Tax software. I do all of my taxes long hand and triple check my math and entries. One year I decided to give Turbo Tax a whirl. I forget if it was on disc or a download though as far back as it was I think it was probably disc. So I fired it up and started doing input and came down to the end and printed out my tax forms.
Then I went through my triple checking process by hand. Lo and behold Turbo Tax made a math error. So I entered everything again from a clean slate and lo and behold Turbo Tax made the same math error. I tried to tell their customer service about it but you can imagine how little interest they had in wanting to know about their "glitch". Needless to say I do my finances and taxes long hand and triple checked. I even found my bank making a repeated $.01 error inserting and removing in my account. They initially weren't too interested either.
But as you and I know reliance on the output of a long computer program can be a dicey proposition. It takes me longer doing some things but I know they are correct in the end. I've seen calculators over the years that made math errors as well. I knew a marvelous professor who was a hydrogeologist and also did consulting work. All of his computer programs for his work were written from scratch by him and verified and those computers never were connected to the internet etc. for anything ever. Because when he would testify in court for a client he was able to show that absolutely correct methodology and the programming.