Why iOS update is 75MB but requires 1.5GB to install?

"Ever built ikea furniture? Let’s say it’s a bookshelf. The bookshelf when built will be 1’ x 2.5’ x 5’ tall. You only need 2.5’2 of floorspace with 5’ vertical clearance for the bookshelf.

However, when you unbox it, lay out the parts on the floor and get to building, you need far more floor space than the bookshelf will occupy.

5’2 (x2) for the sidewalls, and the base is 2.5’2, each shelf will also be 2.5’2, space for the tools and fasteners and instructions, and also space for you to move around while assembling it, and space to move the parts around while you’re assembling, etc.”

- Evil_This

a good analogy for just about anything you want to get done. 

"Wal Mart is really a product of the mid-American conservative business culture from which it came — and is still headquartered. That business culture is all about… well… thrift. You make everything as cheap as you can: wages, supplies, operations, and so on, and you do volume. You go for areas like commodity retail and you dominate them and do lots and lots of volume.
It’s the complete opposite of the bicoastal business culture of places like New York, Massachusetts, and California. That business culture is about leverage and growth. You pay high salaries, spend a lot on technology, and you do margin. You go for areas like high tech or finance where the margins are high, do equity plays, etc. Think Silicon Valley and Manhattan— “profit, not thrift, is the engine of business” as John Maynard Keynes said.”
"…The origin of these mentalities goes back to the original historical industries of these regions: farming for the interior, shipping (mercantile) for the coasts. Farming is a commodity business. Shipping is really about finance, leverage, and margin."
"…The problem though is this: The thrifty and deflationary way of doing things means you have to squeeze all your costs, including wages."
"…You know… in writing this I think I just realized why the margin-seeking inflationary coastal way of doing business has dominated so completely in the last 20 years. Wal-Mart is really an anomaly — most companies that do things their way are struggling. The coastal-style companies that are dominating are called things like Google, Apple, Microsoft, Intel, Goldman Sachs, Tesla Motors, etc. What do they all have in common? They go to the edge (at great cost), do things nobody else can do, and earn high margins. They also pay very well compared to interior thrift-driven conservative outfits. This in turn keeps their employees relatively happy, since.. well… everything else is inflating too."
-api
About to embark on a trip to take the margins in life. Shaking the thrift is still hard.

"Wal Mart is really a product of the mid-American conservative business culture from which it came — and is still headquartered. That business culture is all about… well… thrift. You make everything as cheap as you can: wages, supplies, operations, and so on, and you do volume. You go for areas like commodity retail and you dominate them and do lots and lots of volume.

It’s the complete opposite of the bicoastal business culture of places like New York, Massachusetts, and California. That business culture is about leverage and growth. You pay high salaries, spend a lot on technology, and you do margin. You go for areas like high tech or finance where the margins are high, do equity plays, etc. Think Silicon Valley and Manhattan— “profit, not thrift, is the engine of business” as John Maynard Keynes said.”

"…The origin of these mentalities goes back to the original historical industries of these regions: farming for the interior, shipping (mercantile) for the coasts. Farming is a commodity business. Shipping is really about finance, leverage, and margin."

"…The problem though is this: The thrifty and deflationary way of doing things means you have to squeeze all your costs, including wages."

"…You know… in writing this I think I just realized why the margin-seeking inflationary coastal way of doing business has dominated so completely in the last 20 years. Wal-Mart is really an anomaly — most companies that do things their way are struggling. The coastal-style companies that are dominating are called things like Google, Apple, Microsoft, Intel, Goldman Sachs, Tesla Motors, etc. What do they all have in common? They go to the edge (at great cost), do things nobody else can do, and earn high margins. They also pay very well compared to interior thrift-driven conservative outfits. This in turn keeps their employees relatively happy, since.. well… everything else is inflating too."

-api

About to embark on a trip to take the margins in life. Shaking the thrift is still hard.