There's an argument to holding on X money will let you make more money, therefore making your actual contributions larger / more valuable You can more easily i

There's an argument to holding on X money will let you make more money, therefore making your actual contributions larger / more valuable You can more easily invest your second million than your first (Because you probably need that (Or at least a portion of that to live) There's also no significant reason to start earlier (or later), unless you factor in dying as your stopping point, worthwhile causes aren't going anywhere