----------- [http://i1.nyt.com/images/misc/nytlogo194x27.gif] [http://static01.nyt.com/images/2014/06/01/sunday-review/0601GRAY/0601GRAY-thumbStandard.jpg] Gray Matter Big Mac, Thin Wallet <http://p.nytimes.com/email/re?location=InCMR7g4BCKC2wiZPkcVUp7TIyu7VnX6&user_id=8f05c55fb7ac1959acf17a12b8a14592&email_type=eta&task_id=1401517498541388®i_id=0> By SANFORD E. DeVOE Does eating at McDonald’s make you financially impatient? Or, copy and paste this URL into your browser: http://nyti.ms/1kucT0C <http://p.nytimes.com/email/re?location=InCMR7g4BCKC2wiZPkcVUp7TIyu7VnX6&user_id=8f05c55fb7ac1959acf17a12b8a14592&email_type=eta&task_id=1401517498541388®i_id=0> To get unlimited access to all New York Times articles, subscribe today. See Subscription Options. <http://p.nytimes.com/email/re?location=4z5Q7LhI+KVBjmEgFdYACDuqzkg7rwCIjbQiYyNWYJIW5drsCg04xD2q1X6bqVB/vYPHy+JP5GfoOOml3K0i6GaUY7fZ7jcK869mPAvEGfk=&user_id=8f05c55fb7ac1959acf17a12b8a14592&email_type=eta&task_id=1401517498541388®i_id=0> To ensure delivery to your inbox, please add [log in to unmask]<mailto:[log in to unmask]> to your address book. <http://www.nytimes.com/adx/bin/adx_click.html?type=goto&opzn&page=secure.nytimes.com/mem/emailthis.html&pos=Frame6A&sn2=6da5bd5a/78e3a264&sn1=120d39c6/22867713&camp=FoxSearchlight_AT2014-1911123C-nyt5&ad=0502.BELLE_NYT336x90_NowPlaying.jpg&goto=http%3A%2F%2Fwww%2Efoxsearchlight%2Ecom%2Fbelle%2F> Copyright 2014<http://p.nytimes.com/email/re?location=4z5Q7LhI+KVBjmEgFdYACMlEhIhWVuPIxganfKahJGpDcKtdpfztygRnz23j1z6nDpx4eAAqQbYRMMl5L56EeQ==&user_id=8f05c55fb7ac1959acf17a12b8a14592&email_type=eta&task_id=1401517498541388®i_id=0> | The New York Times Company<http://p.nytimes.com/email/re?location=4z5Q7LhI+KUv6vqdu/zT/DtUzLlQEcSh&user_id=8f05c55fb7ac1959acf17a12b8a14592&email_type=eta&task_id=1401517498541388®i_id=0> | NYTimes.com<http://NYTimes.com> 620 Eighth Avenue New York, NY 10018 [http://p.nytimes.com/email/re?location=hdaNaYedr2/IomeWRKt0nffrak8aSGLbvtkkq/r7ihwOf5XePlpJ1w==&user_id=8f05c55fb7ac1959acf17a12b8a14592&email_type=eta&task_id=1401517498541388®i_id=0]