Speculation
Etymology
From Latin "speculari" (to observe, watch, spy out), from "specula" (a watchtower), from "specere" (to look). Speculation is watchtower-gazing — straining to make out shapes in the distance that are too far off to see clearly, which is why it names both financial risk-taking and reasoning past the evidence.
noun · /spek-yoo-LAY-shun/
Reasoning or conjecture about something on little or no firm evidence.
What it names
Use it to flag ideas ventured beyond what the facts support — clearly labeled guessing about what might be so.
Example
Everything past the crash site was pure speculation; no one had recovered the flight data yet.
Related idea
It runs close to conjecture, but conjecture usually names a specific proposed answer offered for testing, while speculation is the looser activity of entertaining possibilities. Both differ from a hypothesis, which is speculation disciplined into something testable.
noun · /spek-yoo-LAY-shun/
The buying of assets in hope of profit from price swings, accepting high risk.
What it names
high-risk investment for profit
Example
Speculation in property drove prices far above their real value.
Related idea
Both senses reach beyond firm ground — one in thought, one with money. Compare asset, portfolio.
See also