Einstein's tip: Happiness and compounding

[Jurgis]

https://www.theguardian.com/science/2017/oct/25/einstein-note-about-happiness-of-a-modest-life-sells-for-15m

 

Assuming the tip would have been $1, what was the compounded rate of return on the note?

 

Assuming the note would have been sold for expected $8000, what would have been the compounded rate of return?

 

Is Einstein's theory of happiness right?

 

No peeking...  8)

 

...

 

 

 

 

16.2% rate in the first case.

9.92% rate in the second case.

 

So, it appears the note was a great tip.  8)

And it appears that not that big difference in rate of return yields hugely different results after 95 years. (But all of you already knew that ;)).

 

I'll let others debate if the happiness tip was also great tip.  8)