: "Greenland paddle is more efficient"
: "Greenland paddle is easier on your body"

: in the field of logical reasoning "reductio
: ad absurdum".

Which means reducing to zero?

: the ultimate greenland paddle will be a round stick.

No, it is a foil so you need to reduce it to a small foil section blade.

: 2. "Easier on your body" ?
: Yes, since it produces less resistance, our muscles do not work as hard.
: What about the frequency and total stroke count? It takes more 'greenland
: strokes' to move the boat a given distance.

If you apply it to cycling (more strokes), higher (within limits) spin rates are more efficient, not slow "slogging".

: Our bodies do have a hard lifetime limit how many times we can bend our knees
: or swing our arms.

No, loading and movement e.g. movement with heavy loading vs more movement with light loading - the second will lead to the same output with less stress on the body and joints leading to long "life".

: Greenland paddle uses up that limit faster.

As above - no.

: So why there are armies of die-hard greenland paddle users and proponents?
: Well, greenland paddle has it's (albeit narrow) niche: when the wind really
: blows hard,

A feathered Euro would have less wind resistance.

: or there are no materials to make larger blade,
: greenland paddle will do.

Doesn't apply to the original GP builders. Splicing, dowels etc. were all available so they could have made their blades as wide as they wanted to.

: Still, the large blade "euro" (why it is called this) paddle
: evolved for a good reason - most of the time and for most people it is
: superior to greenland stick.

No, the Euro has evolved into the wing - which is just a GP with a greater thickness of foil.

So??????

Alex