capital letter = link
using the first man on the moon as the reference point... let us say the rate of change of events happening from one Undulation to the next is one year
now is 2019: man landed on the moon 50 years ago
we are in time-tense
"the present of the present undulation"
the moon landing will remain time-tense
"the past of the of present undulations"
for 1.e+99 years*
next undulation in the year nineteen sixty-eight the moon-landing will be time-tense
"the future of the present undulation"
* 5.95 squared 7 times = 1.3745850406519075032351231488415e+99