Hi, absolute newbie to blockchain here, so i'm just doing some experimenting and learning.

I'm doing a lot of reading (even following some tutorials on how to create your own blockchain, just for deeper understanding) but one thing I haven't managed to figure out yet is the correlation between "difficulty" and "hashrate"

Just for fun/learning, I just downloaded Quark wallet and the bootstrap per instructions here (which i'm sure saved me a very long wait time, i'm already synced and i'm on a very poor internet connection) - I've set it to mine on my ancient 4 core 4GB RAM desktop just to get a feel for the whole process.

If I run getmininginfo;
{
"blocks" : 5033978,
"currentblocksize" : 1000,
"currentblocktx" : 0,
"difficulty" : 59207.35814723,
"errors" : "",
"genproclimit" : 2,
"networkhashps" : 31352434513,
"pooledtx" : 0,
"testnet" : false,
"chain" : "main",
"generate" : true,
"hashespersec" : 71483
}

So with ~70k hashes, what is the "realistic" return on this system? I'm not worried about profit or energy, this is a learning exercise - But just curious, if I left this PC running for the next day/week/month, how long until I saw my balance go up from zero?