From: "Keith Thomas"

> biodiversity by growing heritage varieties.  I have planted this summer
> tomatoes which are purported to be straight from S America with tiny,
> berry-sized fruits.  I'm for ever on the lookout for foods I can grow
> which are as close as possible to their Pleistocene state.

I'm not sure that "being close to Pleistocene state" tomatoes are
necessarily better to eat than moderna kinds of plants. Potatoes were also
once very small, almost the size of peas but they were more poisonous and
more unedible than moderna ones. Indians improved them (and tomatoes) by
breeding and they became more edible to us but also to parasites. We're a
bit cornered there, either we have natural plants that are poisonous or we
have improved (strange word!) ones that we have to protect with poison.
Still, taking away the seeds from tomatoes should make them better whatever
size or origin they have.

Eva