  The multiple point principle, according to which several vacuum states with
the same energy density exist, is put forward as a fine-tuning mechanism
predicting the ratio between the fundamental and electroweak scales in the
Standard Model (SM). It is shown that this ratio is exponentially huge: $\sim
e^{40}$. Using renormalisation group equations for the SM, we obtain the
effective potential in the 2-loop approximation and investigate the existence
of its postulated second minimum at the fundamental scale. The investigation of
the evolution of the top quark Yukawa coupling constant in the 2-loop
approximation shows that, with initial values of the top Yukawa coupling in the
interval $h(M_t)=0.95\pm 0.03$ (here $M_t$ is the top quark pole mass), a
second minimum of the SM effective potential can exist in the region
$\phi_{min2}\approx 10^{16}-10^{22}$ GeV. A prediction is made of the existence
of a new bound state of 6 top quarks and 6 anti-top quarks, formed due to Higgs
boson exchanges between pairs of quarks/anti-quarks. This bound state is
supposed to condense in a new phase of the SM vacuum. This gives rise to the
possibility of having a phase transition between vacua with and without such a
condensate. The existence of three vacuum states (new, electroweak and
fundamental) solves the hierarchy problem in the SM.
