Not a landscape contractor, I am a technology teacher who also does flips and landlording.  

Nuclear power is inherently safe (I have a back ground in nuclear engineering technology).

Embrace some new technology and don't inconvenience your tenants by making them drive to your bank to pay you rent. 

While I do have silver and gold in units small enough to do small transactions, I think the best bet is to diversify between a myriad of investments.Man has survived for thousands of years as "hunters and gatherer's" and it is only the last 200-300 years, the industrial revolution, that we have become reliant on so much technology.

The engines are very savvy to spam sites going after major keywords and they have plenty of technology in place to slap someone around.

If you like the quant strategy, check out Renaissance Technologies.

Upgrade your phone system, computers or other equipment and technology.

Being a volume real estate brokerage and investment company, we have found that the best technology has helped us keep our entire staff in the loop, and the transactions are closed much faster.

I don't want to take your time with my picture of RE changing in front of our eyes due to technology (and social wisdom) but I wonder if I could ask what YOU think on the subject?

Now, we have Barrack Obama's new "Advisor for Science and Technology", John Holdren.