are quantum errors incorrigible?

If you want to read an argument why (large scale) quantum computers will never work you should click here.
As you would expect, counter arguments are made in the comments, followed by counter counter arguments.

added later: As Lee mentioned already in a comment, Scott A. now offers a US$ 100,000 price (not adjusted for inflation) in this debate. He is either very sure about scalable quantum computers or about Ben doing much more QE3, QE4, ...

Robert Alicki's papers are available at the arxiv, eg. here and here.

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The previous blog post mentioned nuclear isomers. Following the Wikipedia link one encounters after a few steps the idea of a Hafnium bomb; A strange story somewhere in between James Bond and cold fusion...