James Taylor is a batsman. That is what he does. Or, as of last Tuesday, that's what he did. Batting, something he has done since he was little - well, he's always been little, but you know what I mean - has gone, in the beat of a defective heart, from being both what he does best and the source of his income, to something he used to do but which he cannot, for circumstances beyond his control, do any more.
This is a profound source of sadness. To Taylor, of course, and to his family and friends, but also to many cricket followers, most of whom have never met him.
Cricket is like that.
In modern professional rugby union, players are forced to retire before their time with increasing frequency. It happens so often that it barely causes comment, still less any great outpouring of sentiment or regret. It happens in football too. Always has done. Time and the game move on with barely a backward glance.
Cricket is different. Players sometimes die young, but comparatively few have to retire early. The tragic deaths of Ben Hollioake and Philip Hughes, and the circumstances surrounding them, are etched on memories throughout the world; young lives abruptly ended, careers curtailed with thousands of runs unscored, wickets not taken, hours in the field denied.
Although losing the ability to do the thing that you are best at is awful, it is not as bad as dying. Hopefully Taylor has a long and fulfilling, if sadly compromised, life ahead of him. But he will always be susceptible to thoughts - early on spring and summer mornings, and as the evening shadows lengthen on cricket grounds - of what was and what could have been. Memories of Shrewsbury School, of early games at Grace Road, of taking that double hundred off Surrey that everyone talks about, of digging in amid the chaos caused by Pietersen's genius at Headingley, and of batting long for the Lions in the cloying heat of Dambulla. Thoughts of the innings at Manchester and Sharjah and Durban, and the magical short leg catches at the Wanderers, and what they might have led to in the era of Bayliss and Farbrace.
Amid the doubts and quandaries which never seem to go away - over spin bowlers and opening batsmen and levels of public engagement - these are times of renewal and optimism for the England team. They are finally, after longer than many people have been alive, getting to grips with one-day cricket, and, in Joe Root, Ben Stokes and Jos Buttler, they have three cricketers under the age of 26, all of whom who, in their own ways, are world-class.
Taylor may never have quite made it into that category, but there was enough about him, from the way in which he instantly adapted to county cricket, to the way he took the knocks and the rejections and the redundant jibes about his stature, and came back stronger, to suggest that he could have had a long and successful career in international cricket. The summer of 2016 may have decided which way his career would go. Instead, it has ended before the summer has even begun.
There are few things better than being young and being good enough at a sport to make a lucrative career out of it. Most of us would settle simply for being able to play a single off-drive or pull like James Taylor, let alone hit the ball clean out of Headingley as he once did, or manage a run chase as he could. We wouldn't need to be paid to do so. Just doing those things would be enough to take our lives to a higher plane. But, in an instant, Taylor has been forced to leave that world behind and retreat to the foothills of life which the rest of us occupy. Nothing will ever quite feel as good again.
There is a salient lesson in life's unpredictability there, but, while most of us can only dream of having been a contender, James Taylor will always know that he was.