I just finished watching the video below by @philpa
How much Cardano (ADA) should you have?
Around the server room we utilize a very sparse formula for when asked that very question:
(45,000,000,000 (ADA Max Supply) / 21,000,000 (BTC Max Supply)) = 2,142.857143 ADA
With the above recipe you now know, relative to BTC, how much ADA you should have.
The formula is quite elegant and powerful in its simplicity.
At 0.07 USD x 2,142.857143 ADA = 150.00 USD
That’s right you can buy 1 BTC today (2018-09-12) for $150
Of course, 2,142.857143 ADA, is worth way more than one BTC but no one has learned of Cardano yet, so you have to start somewhere.
A Cardano holder just told me they are a Cardano millionaire because they have 1,250 ADA. When I asked how they came to that number they said they came across this post and substituted world millionaires for BTC.
(45,000,000,000 (ADA Max Supply) / 36,000,000 (Millionaires in the world)) = 1,250 ADA
They went on to tell me there are 7.5 billion people on the planet:
(45,000,000,000 (ADA Max Supply) / 7,500,000,000 (world population) = 6 ADA for every person.
I thought I would pass their thinking along.