Why most countries are struggling to shut down 2G
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Global leap to 4G and 5G would cut off phone access for millions of vulnerable people.

Global leap to 4G and 5G would cut off phone access for millions of vulnerable people.

  • Telecom companies aim to profit from the 2G-to-5G transition as governments worldwide face pressure to free up mobile spectrum.
  • Vietnam is the latest country to shut down 2G by offering free 4G phones to the poor.
  • India and South Africa have expressed concern that the strategy would cut off phone access for millions of vulnerable people.
  • Kazumara@discuss.tchncs.deEnglish
    1·
    10 hours ago

    If you divide an inequality by a negative number you have to flip the sign.

    If you want to divide out the g before knowing if it’s positive or negative you need to make the case distinction.

    If you make the case distinction and one branch results in a false statement (5 < 2 in this case), you have disproven the original inequality, or at least discovered a constraint on the original inequality. Then you arrive back at FooBarrington’s statement that includes the constraint :-)