Even at 650 million light years away you would arrive instantly if traveling at lightspeed. Ofc only the spaceship would perceive it as instant. This is due to time dilation. Large and small. Far and close. Long and short are just ambiguous illusions ๐๐
Discussion
650M light years means you need 650M years traveling at lightspeed to reach here. How they figure it out. No one knows ๐คท๐ปโโ๏ธ๐