There will be a need to replace gills with lungs in the process.

FORBES: Can You Use Big Data? The Litmus Test

And not all implants allow several sites to be stimulated at once, so if the technique does work, many people will need to replace their implants to take advantage of it.

ECONOMIST: Cochlear implants

It will replace the social security card and will need to be shown when buying or renting property and to new employers.

BBC: Jersey's new population law due in February

All three argued that, in order for SSDs to replace HDDs in PCs, hundreds of billions of dollars would need to be invested in flash manufacturing capacity, and that such funding was quite simply unavailable.

FORBES: SSD Growth is Demand, not Supply, Limited as CEOs Claim

At question time on 11 January 2010, Security Minister Lord West told the House of Lords that accreditation to the Games would replace the need for a visa, but that the same checks would be made.

BBC: Oral questions

The mill owners were looking for a way to replace the workers with unskilled labor, and needed an automatic mule, which did not need to be controlled by the spinner.

NEWYORKER: The Tweaker