Mutations disprove the theory of upward evolution

[SavedByGraceThruFaith]

But only the beneficial 'errors' will be carried on to future generations. That's the whole point!

Not true if they don't kill or effect reproduction they can be passed on. Haemophelia, cystic fibrosis, MS etc survive despite being bad for the carrier.

However some changes which can bed bad can also be good, sicle cell anaemia confers some protection form malaria.

I like the atom joke.

As to the mutations, they eventually accumulate in the code. What was non lethal can be become permanent in the genome and do to further errors turn more lethal when combined with the other errors.