Genuinely don’t see why not.
He’s been quietly impressing everyone in his team and other drivers with his approach to and speed in every practice and session he’s run in.
The cars are near-identical so there’s no tech disparity for him to worry about.
It’s a long, long race where tactics and mental strength will come into play, one of his strongest skills.
It really boils down to him getting the rub of the luck with mechanicals, yellow flags and cutting through traffic. The only thing he hasn’t done yet is get introduced to the wall at some point, it’s usually a right of passage on ovals.
The major advantage he’ll have is that he is an unknown quantity for his fellow racers, they won’t know how he’s going to overtake, when he’ll push or how he’ll react to most situations. The same as when Mansell went to Indycar in ’93, his overtaking skills and line choices caught them all out. Admittedly there’s less scope for that on an oval compared to a road circuit, but it’s still there.
Does anyone think Alonso is becoming an easier person to like? Similar to how Schumacher was when he came back from retirement. His lack of throwing out the bathwater (toys have been thrown, admittedly!) with the Honda engine and this Indy attempt has put him in a different light. It’s for that reason I want him to win it, maybe not this time but eventually. Then it’s on to Le Mans.