Joel Parker
Dare ObasanjoMe versus the AI coming for my job
Ian K Tindale@carnage4life I know the robot can’t turn into a machine with rotary wheels to outpace the motor bicycle, because of artistic licence – the authors of the story placed a special limitation that the robot can’t transform into complex forms, only simple forms, and that story restriction stands, after all, you can’t change the laws of storywriting. But, the robot could just lengthen its legs so that it can cover more ground with each stride, and then it could catch up, almost straight away. Or is there some hidden authorship story boundary that prevents this too, which wasn’t elucidated in the exposition that occurred actually in the film to actually explain this limitation actually to the audience, so that they can accept this because they’re actually being told it by Arnie, which is a cheap way out, but it worked.
@carnage4life
[authors] ah no, these future robots can’t lengthen their legs to outpace a motor cycle because, er, because, it’d make them so tall they’d hit the ceiling of the car park. In fact, now you mention it, we’ll rewrite the shooting script to make the car park have an especially low ceiling.
[audience] okay, can it change the four limb shapes so that it has the limbs of a horse, and run after it? And point the head forward like a horse? In fact just make it turn into a metallic horse still wearing a uniform?
[authors] ah, er, no, there’s a story boundary we haven’t told you about, it can’t change into a horse on Tuesdays. Sorry, no horses on Tuesdays. Didn’t we mention that? We’ll rewrite the script to have Arnie mention that.
[authors] ah no, these future robots can’t lengthen their legs to outpace a motor cycle because, er, because, it’d make them so tall they’d hit the ceiling of the car park. In fact, now you mention it, we’ll rewrite the shooting script to make the car park have an especially low ceiling.
[audience] okay, can it change the four limb shapes so that it has the limbs of a horse, and run after it? And point the head forward like a horse? In fact just make it turn into a metallic horse still wearing a uniform?
[authors] ah, er, no, there’s a story boundary we haven’t told you about, it can’t change into a horse on Tuesdays. Sorry, no horses on Tuesdays. Didn’t we mention that? We’ll rewrite the script to have Arnie mention that.
Dave Wilburn 
The filmmakers had to redo that scene because Robert Patrick, playing the T1000, ran so fast that he kept catching the dirt bike on foot.
Bobulous 
@DaveMWilburn @carnage4life Wow, fact check says yes:
I always watched the film assuming they had sped up the footage. He runs like an angry rocket.