2017 me, emerging from DeLorean, to 1995 me:
So, this new 'Pentium' chip, turns out the whole 'speculative execution' road is a bit of a mistake. Yes it makes Doom faster but 22 years later all our computer systems are hacked each week by gangs of roaming cyber-criminals wearing vintage 80s micros as cosmetic jewellery on their leather jackets
1995 me (stuck in E1M2): Got it, Doom will get faster
2017 me: Did you even hear a word I said? I said the 80s are going to be fashionable again.