Mostly, she implies, these things should involve social connection, a far more reliable source of pleasure.
"Concerts are a much more reliable source of money because that business is healthier".
The battery could be used to make sporadic renewable power a more reliable source of electricity for the grid.
This enlightened self-interest, underpinned by a sense of national solidarity, is a more reliable source of mutual support than charitable contributions.
One of them is surely the rise of websites run by football clubs, which provide a faster and more reliable source of team news.
Experts say this would reduce the need to build large fossil-fuel-burning power plants, which are still needed to provide a more reliable source of power.
Sri Lanka's impressive rag-makers, operating in high-value niches, may find China a more reliable source of fabric than corrupt, rowdy Pakistan.
The German economy, which has been less affected by the debt crisis, has helped make retail banking a more reliable source of profit than investment banking.
The local Jerry's Seafood chain stopped using Chesapeake Bay crabmeat years ago in favor of a more reliable source of blue crabmeat from Venezuela.
Anthony Codling at said Parsons Brinckerhoff was "the jewel in the crown", as the consulting trade is seen as a more reliable source of income, compared with the more volatile construction business.
