> So what's new here? That estimating an unknown task is silly? Well of course it is! But saying estimates are useless is also daft since there are plenty of ti

> So what's new here? That estimating an unknown task is silly? Well of course it is! But saying estimates are useless is also daft since there are plenty of times we know a fair amount about the problem, and knowing how long things are likely to take is very helpful in deciding what to do next. What's more, if we don't know enough about the problem to come up with a reasonably-confident estimate, that indicates that we need to define or scope out the problem better.