... starting to sound like...
You reminded me of an old joke we said here...
"In a boat, in the middle of a lake, there are three passengers: one is a pro in biology, the other is a pro in physics and the third is a pro in maths. The first asked the boatman:
- Do you know anything about biology?
- No (replied the boatman)
- Pity, you've lost 20% of your life.
The second passenger asked:
- Do you know anything about physics?
- No (replied the boatman)
- Pity, you've lost 30% of your life.
The third passenger asked:
- Do you know anything about mathematics?
- No.
- Pity, you have lost 50% of your life.
Disgusted, the boatman asked:
- Do you all know anything about swimming?
- No (replied all the three passengers)
- Pity, you have lost 100% of your life.
And he turned the boat upside - down... "