<div dir="ltr"><div>On Wed, Jul 20, 2016 at 10:39 PM, John Clark <<a href="mailto:johnkclark@gmail.com">johnkclark@gmail.com</a>> wrote:<br>><br>> On Wed, Jul 20, 2016 spike <<a href="mailto:spike66@att.net">spike66@att.net</a>> wrote:<br>>   <br>>>> There is another factor here: we always assume growth. <br>><br>> A pretty good long tern assumption if technological progress doesn't stop dead in its tracks.<br><br></div>There's an interesting article in The New Yorker about LED "light bulbs" and planned obsolescence:<br><div><br><a href="http://www.newyorker.com/business/currency/the-l-e-d-quandary-why-theres-no-such-thing-as-built-to-last">http://www.newyorker.com/business/currency/the-l-e-d-quandary-why-theres-no-such-thing-as-built-to-last</a><br><br></div><div>I'm not sure it's safe to equate technological progress with economic growth.<br><br></div><div>-Dave<br></div><div><br></div></div>