Lost Depth

is a value assigned to Lostbelts encountered by Chaldea Security Organization.
==Characteristics==
Lost Depth follows Parameter Rules. Devised by Sion Eltnam Sokaris, Lost Depth is a measurement of how "strongly [a Lostbelt] refutes Proper Human History." It takes into account the factors of how much each Lostbelt differs from Proper Human History. The relative age of divergence between each Lostbelt doesn't inherently affect the ranking, but rather how the humanity of the Lostbelt has come to live. The inhuman Yaga of the Russian Lostbelt lost their humanity, but they retained a cultural system closer to Proper Human History than the farmed humanity of the Scandinavian Lostbelt.Fate/Grand Order: Cosmos in the Lostbelt - SIN: The Synchronized Intellect Nation - Prologue
Another value assigned to each Lostbelt is its .Fate/Grand Order: Cosmos in the Lostbelt - SIN: The Synchronized Intellect Nation - Section 1: The Third Lostbelt 
==Known values==
*Lostbelt No. 1 Russian Lostbelt - D, Proper Human History Resemblance - Unlisted
*Lostbelt No. 2 Scandinavian Lostbelt - B+, Proper Human History Resemblance - Unlisted
*Lostbelt No. 3 Chinese Lostbelt - E, Proper Human History Resemblance - E
*Lostbelt No. 4 Indian Lostbelt - A, Proper Human History Resemblance - C
*Lostbelt No. 5 Atlantic Lostbelt - A+, Proper Human History Resemblance - Unlisted
*Lostbelt No. 6 British Lostbelt - EX, Proper Human History Resemblance - Unlisted
*Lostbelt No. 7 South American Lostbelt - A++, Proper Human History Resemblance - Unlisted
==References==
Category:Terminology in Fate/Grand Order
Category:Lostbelt