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+---
+tags:
+ - estimating
+---
+# Estimating Misconceptions
+
+## Standard Practices
+
+In general, many things thought to be standard are quite the opposite.
+
+* Use of square receptacle symbols
+
+## Proposals
+
+Proposals are not legally binding,
+which is a double edged sword
+for intermediate subcontractors like electrical:
+
+* Proposals to GC's can be withdrawn for any reason
+* Proposals from subcontractors can be withdrawn for any reason
+
+This is obviously not popular practice,
+however it is important to recognize
+that errors aren't set in stone
+until a contract is signed.
+
+Destigmatizing proposal retraction is of critical concern for subcontractors.
+See [[estimating-culture]] for more on estimate error game theory.
+
+It's important to recognize that retracting a proposal
+may upset a few people employed by the GC,
+but consider how little your own opinion matters to your company's strategic decisions.
+Much bigger people are involved after the proposal is accepted.