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Squashed embryos switch on genes: Mechanics may guide embryo growth. This article supports my R factor theory but the investigator, Emmanuel Farge, says that his results challenge the notion of a hard-wired development. On the contrary, he merely activated an earlier R factor.

Farge, a physicist working at the Curie Institute in Paris, took fruitfly embryos and flattened them at the top. He then saw that a particular gene normally expressed at the bottom of the embryo was now expressed at the top.

In line with my theory, pressing on the embryo separated cells and they started expressing an earlier R factor.
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