That’s a strong recommendation!
I don't plan on fomenting an argument, but citing observations drawn from the Cambrian Explosion as evidence of Intelligent Design is like using a time machine to fetch dinner. Having supposedly done that myself, I understand the principle behind accepting and endorsing the improbable and the impossible, sometimes several times before breakfast, as a healthy attribute of an imaginative mind.
However, if one is willing to push Intelligent Design, and its operative theater, back to the Cambrian, what's the essential difference between that and the panspermia theory?