Experiment to see if I can increase the volatility of the money I invest.

It's definitely designed to be a long-term strategy to minimize risk, which doesn't compete with systematic stock market investing for someone who can tolerate that episodic volatility/risk and is confident of long-term return of 8+ percent. 

HELOC's are also volatile meaning they are a risk based line of credit so since they are monitored monthly if your credit score changes or drops or your debt obligations increase the bank/lender can and will close or reduce your credit limit. 

She was occasionally volatile and unhinged on phone calls and wouldn't let me in for a walk-through/move-in inspection at first (seller hadn't done one) when we took over until I explained twice how much it was in her best interest to do so.

It’s a little different than typical situation as I am just trying to balance portfolio (too much in market, volatile) I was wanting to balance with some real estate, so I’m willing to just break even.

[Sidebar: Note that pulp prices don't seem to be as volatile.

Due to irreconcilable differences this has become a very volatile environment and she is thinking of leaving the home , if she does is this considered abandonment and does this constitute forfeiture of any rights or profits from a home sale?

Third, short term rentals are subject to extreme volatility in vacancy rates.

My concern at the moment is in regulation and the volatility of crypto assets.

It's highly volatile so my advice is to learn to trade if you want to get into crypto, if you invest at the wrong time you can lose a huge chunk right away.