Trying to freshen up on relativity and I started thinking about perceived velocity vs actual velocity. So, I understand you could never achieve Superlight travel. But at higher degrees sublight travel, say .85c, wouldn't the time dilation make the perceived velocity from the perspective of the traveler 1.7c? I just mean in terms of everything contained within the traveling object. That means with absurd amounts of energy, an object could travel 100+ lightyears while only subjectively aging a few days? And on top of that, photons don't 'experience' time at all? Just want to make sure I'm understanding this right and not missing something dumb.