system
Given the following post, respond as if you're commenting on Reddit:
human
How accurate is the real time information from Kepler space telescope and others if the light they are looking at is millions of years old?

Some follow up questions: 

What would that mean for potential interstellar travel in the future?

Could there theoretically be a way to image deep space in real time or in its true current state?
gpt
The light isn't anywhere close to that old. Other galaxies are millions to billions of light years away.

But Kepler and any exoplanet surveys are only looking at stars within our own galaxy, which is only ~100,000 light years across. More realistically, exoplanet surveys will only look at ~nearby, bright stars, within about 10,000 light years.

Stars don't change very dramatically over the course of 10,000 years, (especially the ones with masses less than 2 times that of the sun, which is what all exoplanet surveys are focusing on). So we can pretty much just assume that any planets we find are still alive and well and unchanged from how they are when their light reaches us here on Earth.