Here is our weekly grab-bag of interesting news items and other thought-provoking pieces:

It’s the little things that can color an investor’s outlook (The Wall Street Journal). Many websites show investment gains in green pixels and losses in red. New research suggests those colors can have a powerful influence on investor behavior.

Baby Boomers will live long but might not prosper (Bloomberg). The biggest threat to many retirees? Outliving their nest egg.

What I learned from my 'faux-tirement' (Morningstar). Longtime Morningstar columnist Christine Benz took a retirement "trial run" — and now sees a few things differently.

Social Security unfunded liabilities rise to $12.5 trillion, according to trustees report (Washington Examiner). A trillion here, a trillion there... (If you have the stomach for it, you can read the full 2017 Annual Report of the Board of Trustees of the Federal Old-Age and Survivors Insurance and Federal Disability Insurance Trust Funds — PDF.)

Visa takes war on cash to restaurants (Dow Jones Newswires). The credit card giant is trying to persuade restaurants to stop accepting cash altogether.

And from the blogosphere...

How to save money when you’re young (A Wealth of Common Sense). Nickel and diming your way to savings may help at the margins, but the real way to save money as a young person is by focusing on life's big ticket items.

132 weeks and counting (Bespoke). Bullish sentiment is below 30 percent, but so is bearish sentiment. That means most investors are in "wait and see" mode.

Will there ever be another correction? (Pension Partners). As the market's long period of relative calm stretches on, some people are asking that (absurd) question.

The consequences of being wrong (Novel Investor). Sometimes in investing you can do the right thing, make a sound decision, and still end up with a not-so-good result. Then what?

Market prediction is harder than you think (Peter Lazaroff). The stock market is a complex system in which linear thinking — A causes B — isn’t sufficient. So don't try to predict when stocks will take a tumble. Instead, plan on downturns occurring.

Have thoughts on any of the above? Speak up in the comments section.