wp_cron - how does it work?

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wp_cron � simonwheatley.co.uk: "This is where the pseudo come in, with the WordPress pseudo-Cron we’re relying on a constant flow of visitors to trigger WordPress into checking for scheduled tasks. The upshot of this is that we cannot rely on WordPress to precisely schedule events, but the system is good enough for most things. (We can always increase the frequency of visitors artificially by targetting the site with five minute checks by Pingdom or similar, with the added benefit that the site is now monitored for downtime.)"

all your bases ar--