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Glite Dictionary
📊 A past estimate 📊 To estimate past
to backcast

to backcast

9.1
To use current models to estimate past events
  • verb
  • /ˈbækˌkæst/
  • Specialized
translation icon : retropronosticar
  • Scientists often backcast climate data to better understand historical temperature trends.

Examples

  • Using the latest software, researchers can backcast economic conditions from recent financial models.

  • The team decided to backcast the sales figures to find patterns in consumer behavior over the last decade.

  • And this makes backcasting a powerful technique for next-generation product designs.

    Academic text (1995)

  • It's a pretty damning model starting way back in the 1980s now that I'm confident in backcasting it in the rearview mirror, so to speak.

    Blog text (32)

  • Solving for MVt1/MVt, we obtained an expression for the inverse of the change in market value, which we used to backcast market values for 1900-1924: ...

    Academic text (2017)

Synonyms

to reconstruct
vsto backcast
52 4.8

Make a picture in your mind from available information

uses current models to estimate past events rather than a general representation
to extrapolate
vsto backcast
44 8.5

To use known information to guess what will be true in new situations

estimates past events using current models instead of projecting trends outward
to hindcast
vsto backcast
  • Specialized
1 8.8

To use a model to recreate past weather or ocean conditions

uses current models to estimate past events rather than primarily validating models

Surface Forms

backcast infinitive
backcasted past
backcasted past participle
backcasting present participle
backcasts third person singular

Morphology

backcast = cast (semi-transparent) = back + cast

The verb is formed by adding the prefix 'back-' to 'cast' to indicate estimating backward in time; the construction is logical but relies on the specialized forecasting sense of 'cast'.

Etymology

The word backcast is formed from back ('behind' or 'past') and cast ('to throw' or 'send'), just as forecast uses 'cast' to send a model forward. So to backcast is to 'send' your model backward to estimate or recreate what happened before.