Is Mobiles Slowing Memory?

1. It is a known fact that by virtue of inbuilt memory of a phone, nobody even puts pressure on mind to remember the phone numbers.

2. Earlier using the landline one at least used to try to remember the number and thus it also developed the mathematical ability of the mind.

3. It is surprising that people even do not know the phone numbers of their mobile and requests others to tell them their mobile number.

4. Is this number game taking our brain analytical ability backwards.