He is Jonathan Vernon-Smith and he does a phone-in show.
You can listen to the programme online here ( my bit is in the middle)
The first thing that struck me was he seemed to look like a womb twin survivor at first glance ( don't ask me how, just a guess!!) he then said he had done the quick quiz ( see link at the top left of this page if you want to do it) and it said "probably" he is a womb twin survivor.
The question was "Should parents tell their child about their lost twin?" and he had the usual concerns that this would put a burden of grief on the child and make then sad when it would be best not to know. I pointed out that it is more of a relief than a sadness, and they know anyway.
The calls backed up everything I said until we got to the lady in Harpenden who made the usual sceptical response and called it a "load of tosh." I reminded the listeners that this situation affects 10% of the population and therefore 90% of the population do not understand AT ALL, and she was evidently one of that 90%.
So please listen ( if you are in the UK) and let me know what you think. Its always a great thing to get onto radio or TV - a rare event indeed but a great privilege, and that time I was not made out to be a freak by the presenter - phew!!