Jargon serves a valuable purpose when shared between people in the same domain. It is a form of compression that leads to accuracy. Why waste time and ill-defined words when there is a precise language everyone in the conversation understands?

Errors happen at the margin. Someone is too new or too inexperienced to understand the precision of what is being shared. A cross-discipline team will fall foul of the same problem, as a common language is not well established. Terms can mean different things.

Another significant issue is dealing with the 'unknown unknowns '. These are the risks that you are not even aware of due to insufficient knowledge or understanding.

There is a lot of in-house jargon in financial transactions that can be useful. Historical jargon or slang might still be used, yet the meaning has shifted. There are arcane terms for stuff that could be better described with clear language.

One helpful solution is to check the math to see if the numbers make sense. Check the calculations. Check the inputs. Ask about inputs that are absent to ensure they should be excluded. Seek out views from experienced hands to double or triple-check the analysis. Drill into some specific details to see if others have put in the analysis time versus just skimming with the assumption that someone else must have verified the math