Why worry about short term memory if I can still explore Prague on my own

I was diagnosed with Alzheimers in Dec 2017.
I only had mild cognitive impairment but a great deal of myeloid brain plaque.
I had one gene positive for AZ.

Today I was able to find my way to the Prague Castle by myself.
I asked the front desk at the hotel how to get by metro to Prague palace.
I had been. here for two days so I was already somewhat oriented.

I got off the metro and followed the signs to the palace.
I had the some hints from other travelers to bear right, not left.
That hint helped a lot.

I had a private car tour the day before and that helped me with reverse engineering.

I found the entrance to metro

 I took escalator down

 I validated my day transport ticket

 After going through some tunnels  I found the correct platform

I knew I wanted the green line

 On the surface I crossed this bridge

 The signs were a great help.

 View from the palace

 How I looked after my odyssey.  5,000 steps

 On the Charles Bridge

 Liter of beer and sauerkraut soup at Old Square.   Perfect replenishment.

 Later that evening after walking 20,000 steps for the day.  A new record.