Tesla Vision, is single camera distance measuring possible for Parking Assist and FSD?

I thought no better place to ask than here, in order to get an informed opinion about the feasibility of what Tesla aims to do with Tesla Vision since the past year.

To provide context, previous Tesla Model 3/Y HW3 had 2 frontal cameras side by side near the rear view mirror and Ultra Sonic Sensors (USS) on the lower front bumper to help with Full Self Driving and parking assistance and both of these features were fairly reliable in …

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