Killian wonders why insurance policies are so badly written. I disagree with both of his hypotheses: that the underwriters think the nature of the risks they seek to cover is complicated, or that they think that if they write the policies in an arcane and convoluted manner they'll have wiggle room when coverage disputes arise.
Policies are complicated because they are written reactively rather than proactively. They react to court decisions that interpret them.
Say there's an exclusion that provides, "This policy excludes damage to trees." A court holds the exclusion does not apply to apples that have fallen from trees. (For those of you who did not grow up near orchards, such apples are used for cider.)
The next version of the exclusion will provide, "This policy excludes damage to trees and to the product of any tree that has not yet been harvested." A court holds that that exclusion does not apply to damage to apples sitting in a wheelbarrow under a tree, because they have been harvested.
The next version of the exclusion will provide, "This policy excludes damage to trees and to the product of any tree that has not yet been harvested, and to the product of any tree that has been harvested that remains on the insured property." A court decision holds that "the product of any tree that has been harvested" applies only when the the tree itself has been harvested (such as for lumber) and not when its fruit has been harvested.
The next version of the exclusion will provide, "This policy excludes damage to trees and to any tree that has not been harvested and to any product that has not yet been harvested that grows on trees on the property and to any tree that has been harvested and remains on the property and to any product that grows on trees that has been harvested and remains on the property."
By now no one can read through the exclusion without their eyes crossing, much less figure out what it purports to exclude. Combine it with a few policy definitions and maybe an anti-concurrent causation clause, and . . . welcome to a modern insurance policy.