Final answer:
Physical depreciation is the type of depreciation that is typically considered always incurable in real estate.
Step-by-step explanation:
In real estate, the type of depreciation that is typically considered always incurable is physical depreciation.
Physical depreciation refers to the deterioration or wearing out of a property over time, causing a decline in its value.
For example, if a building's roof is leaking and requires extensive repairs, or if the plumbing system is outdated and needs to be replaced, these physical deficiencies cannot be easily fixed or reversed, resulting in incurable depreciation.