for easy debuggability it's crucial to keep both the spatial and temporal
distance small between actions and their effects. maybe more generally the
distance between interconnected parts.
what happens here is that LOCAL-FILE is a constructor for a complex data
structure (i.e. its SELECT? field is straight out applied), and the error
happens much later (i.e. in a large temporal distance) when the data is
interpreted.
our feeble human minds would be greatly helped here if there was type
annotation on the data structure with type checking at construction time.
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• attila lendvai
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“Concentrated power is not rendered harmless by the good intentions of those
who create it.”
— Milton Friedman (1912–2006)
