bitcoin

Year 2009.
If you had a time machine, which of the following options would you choose?

1. Send encrypted emails to Satoshi Nakamoto for a month, helping him develop the Bitcoin code, hoping he would send you a donation (you can transfer the bitcoin private key to present) but without giving him information about the time of your assistance or any other information.

2. Bitcoin CPU mining on a laptop for 24 hours. You need to remember 3 private keys. But 1 of them will be the right one. You are not allowed to carry your laptop or keep any note paper in the present.

You can only choose one of the two options!