Accountants do not attempt to measure the change in a plant asset's fair value during ownership because of what?

Accountants do not measure the change in a plant asset's fair value during ownership primarily due to the principle of historical cost accounting, which emphasizes recording assets at their acquisition cost rather than their current market value. This approach promotes consistency and reliability in financial reporting. Additionally, fluctuations in fair value can be subjective and may lead to volatility in financial statements, complicating the assessment of a company's financial health. Therefore, accountants focus on depreciation and impairment rather than ongoing fair value changes.