wall of text i can’t climb over 
Essentially, what TS is trying to say is that other than the
traditional fixed deposit options offered by banks, there is
another alternative known as SGS securities. These securities are
also known as bonds/T-bills/fixed income instruments.
They offer a higher rate of return (about 2% at time of TS's
initial posting), for a lower level of risk (Governments have the
ability to print money so it's assumed that they won't default on
their debt).
My opinion is, it's a good investment if your are sure that
interest rates are at their peaks and you will hold your investment
to maturity, ie till the term of the fixed income instrument
ends.