Hypothesis
What does it mean to state a testable claim about how BTC behaves, and how do you check it against one week's data?
In plain words
A hypothesis is a specific, testable claim about how a market behaves under stated conditions. It names what you expect to see, over what period, and what evidence would count against the claim, so the claim can be checked rather than merely believed.
Why it matters
Markets reward claims that can fail. A hypothesis forces you to define the period, the condition and the outcome before seeing the data, which keeps a lucky single week from being treated as proof. Checking one week is a weak test; the same rule needs to survive many independent weeks, including flat ones.
In a real week: BTC, week of 5 December 2022
Take the hypothesis: BTC rises after weeks that were up. The four weeks before 5 December 2022 returned -21.89%, -0.32%, 0.92% and 4.12%, giving two up and two down weeks. The week of 5 to 11 December closed at 17085.05, a -0.13% return, ranking in the 45th percentile against 251 weeks of history. The prior week had been up 4.12%, so this down week counts against the rule, though one observation is weak evidence.
A common mistake
Treating a single confirming week as proof. One observation carries little information; a hypothesis needs many independent tests, including weeks where nothing interesting happened.