Hell, it's possible the accelerate didn't come first. It could be derived from the Alien itself. Similar to what we discover in the Alien III Gibson drafts about the Alien's chemistry being very very aggressive and tenacious and prone to finding it's pure form one way or the other. The accelerate could like two-way roots of a tree, branching out, contorting, but ultimately finding their way back to the Alien in it's purest form. That is, after all, true to the Alien's nature. A survivor.