"Training Finds the Best Possible"
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State
Descent finds a valley, not the deepest valley — big terrain holds canyons and saddles, and the truthful claim is a low point this walk reached.
Show
Bold strides ricochet between canyon walls, timid ones inch — optimizers are engineering answers to terrain, not guarantees.
Watch for
"Optimally trained" is a category error — though in practice the low points are often superb, for reasons partly explained.