It takes 7 minutes one-way so you're looking at 14 minutes, but the power of the emited light from the iPhone...
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The camera module will protrude due to physics. They can't make the modules physically thinner without severe degradation of image quality currently. Moreover, the protrusion is the intelligent design because in order to have no protrusion the device would have to be about 8.3mm thick, which while you may think is nominal and of absolutely no concern to you, if you actually held such a device you'd immediately want the thinner device back, protrusion and all.
Secondly, a little explanation to ease your mind about the display cutout at the top of the 2017 iPhone:
That top portion of the display will be black, always. Period. The cutout will blend into the perfect black OLED display, and you will virtually never see the cutout unless you are in the perfect light and angle. I personally believe Apple will have made the black bezel try to blend with the display blackness as much as possible, therefore a comparison to the relative ease of discerning the display vs the bezel in the Apple Watch, is not a comparison worth making.
The iPhone will look like one of these two mockups someone made: keep in mind that the top left and right corners beside the cutout will be used for dynamic info/touch zones and the bottom black bar will be the Home Bar which acts as the Home Buttonand dynamic touch zones/info akin to the Touchbar on the MacBook Pro.
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