Positive

Once upon a time we thought ourselves haunted by spam.

There were just too many emails. Too much time was lost checking them by hand. Then they came up with Bayesian filters.

If it looked like spam -if the arcane maths matched up- then it was tagged as such. But people were lazy, and the filters were good, and pretty soon everybody was deleting the tagged ones at first sight.

One day people didn't even let them reach the inbox. Some legitimate messages didn't reach you, perhaps, but the alternative was too much work, the inconvenience too high, and nobody could argue against the impartiality of statistics.

Bayes' even hand.

Our inbox folders were cleaner. We moved on to other things.

Once upon a time we thought ourselves haunted by terror.

There were just too many suspects. Too much time was lost checking them by hand.

.finis.