re: When, if ever will we have spacecraft that can travel at light speed?

quote:

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The new galaxy is only 230 trillion miles and 40 light years away! It's hard to wrap your mind around that.

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In an attempt to wrap my mind around it, I came up with the following:

According to google, the average moderately active person takes around 7,500 step/day. If you maintain that daily average and live until 80 years of age, you'll have walked about 216,262,500 steps in your lifetime. Doing the math, the average person with the average stride living until 80 will walk a distance of around 110,000 miles

If we assume that every person alive in the world today, say 7 billion people, walks this amount of miles... it comes out to approximately 131 light years of distance walked.

So everyone in the world combined walking distance in their lives could almost make two roundtrips to that new solar system.