You have no idea what this means?
Correct. What is this Triple Crown of Endurance? Never heard of such a thing. And why were you talking about about Phil Hill and Jackie Oliver? You have totally lost me.
We were discussing the so-called Triple Crown of winning the F1 WDC (or alternatively, the F1 Monaco GP), the 24 Hours of Le Mans and the Indy 500. Which just one person has done - in either iteration - and which I consider to be a finite event.
Like the Four Minute Mile. It was first run by Roger Bannister and he remains the man who did it. Other have done it since, and indeed gone faster, but nobody cares or remembers them as being special. The world mile record can be beaten and is and will be, but no-one can again be first to run the Four Minute Mile. Likewise the Triple Crown, in my view. Those of you trying to equate it with winning individual races are simply either not getting the point, or being deliberately obtuse.
But if Alonso can match Graham Hill, it will certainly be a great achievemen,t but he will still be, at best, the bloke who finally managed to equal Hill over forty year later.