Two might lead to a pattern
Posted by jpluimers on 2021/08/05
There is a known saying phrased using cardinal, adverbial or ordinal numbers, and several naming for the first:
- One is change, two is coincidence, three is a pattern
- Once Is Chance, Twice is Coincidence, Third Time Is A Pattern
- One is an anomaly, two is a coincidence, three is a pattern
- First time is an incident, second a coincidence, third a pattern
Sometimes the second can lead to a pattern.
A while ago, I had two discount codes for Egardia/Woonveilig:
- BDKOR062019 issued on 20190204
- BDKOR132019 issued on 20190325
I needed some new equipment, so I hoped I could find a pattern.
There was.
I entered discount code BDKOR372019 while ordering on 20190910 and got a 10% discount, same with BDKOR312020 on 20200713 with a 10% discount. Now we got 3 is a pattern and 4 convinces the pattern.
Those codes were based on my observation that 06 and 13 are the week numbers of the two dates above according to the ISO 8601 [WayBack] Week Numbers for 2019:
Week number From Date To Date Week 52, 2018 December 24, 2018 December 30, 2018 … Week 06 February 4, 2019 February 10, 2019 … Week 37 September 9, 2019 September 15, 2019 … Week 01, 2020 December 30, 2019 January 5, 2020
–jeroen
The Wiert Corner - irregular stream of stuff 
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