system
Given the following post, respond as if you're commenting on Reddit:
human
Why is it harder to send a spacecraft to the Sun than away from the Sun?

Stupid me thinks the gravity would help. Smarter than me says physics knows why.
gpt
Earth orbits the Sun with about 30 km/s. To reach the Sun (or get very close), you have to cancel all this speed - accelerate backwards by nearly 30 km/s. That is too much for rockets. In addition to a very powerful rocket you need tricks like fly-bys at the inner planets to reduce your tangential velocity.

At the distance of Earth, the escape velocity from the Sun is 42 km/s ("exactly" sqrt(2) times the orbital velocity). To escape, you can accelerate forwards by 12 km/s. That is something rockets can do.