Sez who?
dont believe me? get the compounds involved in making an algae, or any living thing. get the exact compounds to the sixteenth place for all i care.
strike it with lightning or any other energy form you feel it would have com into contact with on a pre-life planet.
bingo, the same chemical reactions they say made life. (excluding my claim for design)
repeat all you want.
call me when you make life that way.