I can tell you what day of the week you were born on (without looking it up)
Mike Boyd・7 minutes read
The speaker learned a math trick to determine the day of the week for any date by memorizing specific dates that land on the same day each year and practicing extensively to master the skill after 176 practice sessions.
Insights
- By memorizing specific dates that consistently fall on the same day of the week, such as April 4th, June 6th, August 8th, October 10th, and December 12th, one can accurately determine the day of the week for any date quickly and efficiently.
- Through dedicated practice, including creating cheat sheets, utilizing spreadsheets for random date generation, and committing to 176 practice sessions totaling 8 hours, 32 minutes, and 23 seconds, the speaker achieved mastery of the math trick, showcasing the importance of persistence and deliberate practice in acquiring new skills.
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Recent questions
How can I determine the day of the week for any date?
By memorizing specific dates that always fall on the same day of the week and applying a mathematical trick involving assigning numbers to days of the week, factoring in leap years, and simplifying the process to a sum for quick mental calculations.
What are some dates that always fall on the same day of the week?
Dates such as the 4th of April, 6th of June, 8th of August, 10th of October, and 12th of December, which all land on Sundays in 2021.
How did the speaker practice to master the math trick?
The speaker practiced extensively by creating cheat sheets, using spreadsheets to generate random dates for practice, and dedicating 176 practice sessions, totaling 8 hours, 32 minutes, and 23 seconds to become proficient.
What is the key to applying the math trick for other years?
Assigning numbers to days of the week, calculating the day for the specific year, factoring in leap years, and simplifying the process to a sum for quick mental calculations are essential steps to apply the math trick for other years.
How long did it take the speaker to master the math trick?
It took a total of 8 hours, 32 minutes, and 23 seconds, spread over 176 practice sessions, for the speaker to become proficient in mastering the math trick.
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Summary
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Mastering Math Trick to Determine Day of Week
- The speaker learned a math trick to determine the day of the week for any date, demonstrated by correctly identifying various dates chosen by Kim.
- The trick involves memorizing specific dates that always fall on the same day of the week, such as the 4th of April, 6th of June, 8th of August, 10th of October, and 12th of December, which all land on Sundays in 2021.
- To apply the trick for other years, assign numbers to days of the week, calculate the day for the specific year, factor in leap years, and simplify the process to a sum for quick mental calculations.
- The speaker practiced extensively, creating cheat sheets, using spreadsheets to generate random dates for practice, and eventually mastering the skill after 176 practice sessions, taking a total of 8 hours, 32 minutes, and 23 seconds to become proficient.
